Finding the Third Proportional to 86,520 and 131,404.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,520 : 131,404.50 = 131,404.50 : x
2. Step 2: Convert to fraction form
   86,520/131,404.50 = 131,404.50/x
3. Step 3: Cross multiply
   86,520x = 131,404.50 × 131,404.50
4. Step 4: Simplify right side
   86,520x = 17,267,142,620.25
5. Step 5: Solve for x
   x = 17,267,142,620.25/86,520
6. Step 6: Final answer
   x = 199,574.00