Finding the Third Proportional to 39,346.78 and 59,318.10

Step by Step Solution

1. Step 1: Write the proportion equation
   39,346.78 : 59,318.10 = 59,318.10 : x
2. Step 2: Convert to fraction form
   39,346.78/59,318.10 = 59,318.10/x
3. Step 3: Cross multiply
   39,346.78x = 59,318.10 × 59,318.10
4. Step 4: Simplify right side
   39,346.78x = 3,518,637,404.69
5. Step 5: Solve for x
   x = 3,518,637,404.69/39,346.78
6. Step 6: Final answer
   x = 89,426.32