Finding the Third Proportional to 86,511.50 and 116,401.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,511.50 : 116,401.50 = 116,401.50 : x
2. Step 2: Convert to fraction form
   86,511.50/116,401.50 = 116,401.50/x
3. Step 3: Cross multiply
   86,511.50x = 116,401.50 × 116,401.50
4. Step 4: Simplify right side
   86,511.50x = 13,549,309,202.25
5. Step 5: Solve for x
   x = 13,549,309,202.25/86,511.50
6. Step 6: Final answer
   x = 156,618.59