Finding the Third Proportional to 87,763.50 and 192,688.31

Step by Step Solution

1. Step 1: Write the proportion equation
   87,763.50 : 192,688.31 = 192,688.31 : x
2. Step 2: Convert to fraction form
   87,763.50/192,688.31 = 192,688.31/x
3. Step 3: Cross multiply
   87,763.50x = 192,688.31 × 192,688.31
4. Step 4: Simplify right side
   87,763.50x = 37,128,785,774.10
5. Step 5: Solve for x
   x = 37,128,785,774.10/87,763.50
6. Step 6: Final answer
   x = 423,054.98