Finding the Third Proportional to 42,300.56 and 90,132.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,300.56 : 90,132.75 = 90,132.75 : x
2. Step 2: Convert to fraction form
   42,300.56/90,132.75 = 90,132.75/x
3. Step 3: Cross multiply
   42,300.56x = 90,132.75 × 90,132.75
4. Step 4: Simplify right side
   42,300.56x = 8,123,912,622.56
5. Step 5: Solve for x
   x = 8,123,912,622.56/42,300.56
6. Step 6: Final answer
   x = 192,052.12