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Finding the Third Proportional to 28,389 and 43,930.50

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Solution

The third proportional to 28,389 and 43,930.50 is: 67,980.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,389 : 43,930.50 = 43,930.50 : x
  2. Step 2: Convert to fraction form
    28,389/43,930.50 = 43,930.50/x
  3. Step 3: Cross multiply
    28,389x = 43,930.50 × 43,930.50
  4. Step 4: Simplify right side
    28,389x = 1,929,888,830.25
  5. Step 5: Solve for x
    x = 1,929,888,830.25/28,389
  6. Step 6: Final answer
    x = 67,980.16

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