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Finding the Third Proportional to 142,978,047 and 214,274,979

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Solution

The third proportional to 142,978,047 and 214,274,979 is: 321,124,589.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,978,047 : 214,274,979 = 214,274,979 : x
  2. Step 2: Convert to fraction form
    142,978,047/214,274,979 = 214,274,979/x
  3. Step 3: Cross multiply
    142,978,047x = 214,274,979 × 214,274,979
  4. Step 4: Simplify right side
    142,978,047x = 45,913,766,625,450,440
  5. Step 5: Solve for x
    x = 45,913,766,625,450,440/142,978,047
  6. Step 6: Final answer
    x = 321,124,589.33

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