Finding the Third Proportional to 87,205.50 and 130,809.38

Step by Step Solution

1. Step 1: Write the proportion equation
   87,205.50 : 130,809.38 = 130,809.38 : x
2. Step 2: Convert to fraction form
   87,205.50/130,809.38 = 130,809.38/x
3. Step 3: Cross multiply
   87,205.50x = 130,809.38 × 130,809.38
4. Step 4: Simplify right side
   87,205.50x = 17,111,092,587.89
5. Step 5: Solve for x
   x = 17,111,092,587.89/87,205.50
6. Step 6: Final answer
   x = 196,215.75