Finding the Third Proportional to 87,816.28 and 207,233.34

Step by Step Solution

1. Step 1: Write the proportion equation
   87,816.28 : 207,233.34 = 207,233.34 : x
2. Step 2: Convert to fraction form
   87,816.28/207,233.34 = 207,233.34/x
3. Step 3: Cross multiply
   87,816.28x = 207,233.34 × 207,233.34
4. Step 4: Simplify right side
   87,816.28x = 42,945,658,761.81
5. Step 5: Solve for x
   x = 42,945,658,761.81/87,816.28
6. Step 6: Final answer
   x = 489,039.82