Finding the Third Proportional to 87,207 and 130,810.50

Step by Step Solution

1. Step 1: Write the proportion equation
   87,207 : 130,810.50 = 130,810.50 : x
2. Step 2: Convert to fraction form
   87,207/130,810.50 = 130,810.50/x
3. Step 3: Cross multiply
   87,207x = 130,810.50 × 130,810.50
4. Step 4: Simplify right side
   87,207x = 17,111,386,910.25
5. Step 5: Solve for x
   x = 17,111,386,910.25/87,207
6. Step 6: Final answer
   x = 196,215.75