Finding the Third Proportional to 90,112.50 and 130,521.38

Step by Step Solution

1. Step 1: Write the proportion equation
   90,112.50 : 130,521.38 = 130,521.38 : x
2. Step 2: Convert to fraction form
   90,112.50/130,521.38 = 130,521.38/x
3. Step 3: Cross multiply
   90,112.50x = 130,521.38 × 130,521.38
4. Step 4: Simplify right side
   90,112.50x = 17,035,829,331.89
5. Step 5: Solve for x
   x = 17,035,829,331.89/90,112.50
6. Step 6: Final answer
   x = 189,050.68