Finding the Third Proportional to 90,475.31 and 133,078.78

Step by Step Solution

1. Step 1: Write the proportion equation
   90,475.31 : 133,078.78 = 133,078.78 : x
2. Step 2: Convert to fraction form
   90,475.31/133,078.78 = 133,078.78/x
3. Step 3: Cross multiply
   90,475.31x = 133,078.78 × 133,078.78
4. Step 4: Simplify right side
   90,475.31x = 17,709,962,018.99
5. Step 5: Solve for x
   x = 17,709,962,018.99/90,475.31
6. Step 6: Final answer
   x = 195,743.58