Finding the Third Proportional to 90,147 and 130,567.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,147 : 130,567.50 = 130,567.50 : x
2. Step 2: Convert to fraction form
   90,147/130,567.50 = 130,567.50/x
3. Step 3: Cross multiply
   90,147x = 130,567.50 × 130,567.50
4. Step 4: Simplify right side
   90,147x = 17,047,872,056.25
5. Step 5: Solve for x
   x = 17,047,872,056.25/90,147
6. Step 6: Final answer
   x = 189,111.92