Finding the Third Proportional to 39,921 and 59,884.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,921 : 59,884.50 = 59,884.50 : x
2. Step 2: Convert to fraction form
   39,921/59,884.50 = 59,884.50/x
3. Step 3: Cross multiply
   39,921x = 59,884.50 × 59,884.50
4. Step 4: Simplify right side
   39,921x = 3,586,153,340.25
5. Step 5: Solve for x
   x = 3,586,153,340.25/39,921
6. Step 6: Final answer
   x = 89,831.25