Finding the Third Proportional to 42,387 and 62,281.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,387 : 62,281.50 = 62,281.50 : x
2. Step 2: Convert to fraction form
   42,387/62,281.50 = 62,281.50/x
3. Step 3: Cross multiply
   42,387x = 62,281.50 × 62,281.50
4. Step 4: Simplify right side
   42,387x = 3,878,985,242.25
5. Step 5: Solve for x
   x = 3,878,985,242.25/42,387
6. Step 6: Final answer
   x = 91,513.56