Finding the Third Proportional to 90,141.75 and 130,565.25

Step by Step Solution

1. Step 1: Write the proportion equation
   90,141.75 : 130,565.25 = 130,565.25 : x
2. Step 2: Convert to fraction form
   90,141.75/130,565.25 = 130,565.25/x
3. Step 3: Cross multiply
   90,141.75x = 130,565.25 × 130,565.25
4. Step 4: Simplify right side
   90,141.75x = 17,047,284,507.56
5. Step 5: Solve for x
   x = 17,047,284,507.56/90,141.75
6. Step 6: Final answer
   x = 189,116.41