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Finding the Third Proportional to 21,047,978.25 and 31,486,137.75

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Solution

The third proportional to 21,047,978.25 and 31,486,137.75 is: 47,100,812.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,047,978.25 : 31,486,137.75 = 31,486,137.75 : x
  2. Step 2: Convert to fraction form
    21,047,978.25/31,486,137.75 = 31,486,137.75/x
  3. Step 3: Cross multiply
    21,047,978.25x = 31,486,137.75 × 31,486,137.75
  4. Step 4: Simplify right side
    21,047,978.25x = 991,376,870,411,975
  5. Step 5: Solve for x
    x = 991,376,870,411,975/21,047,978.25
  6. Step 6: Final answer
    x = 47,100,812.18

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