Finding the Third Proportional to 131,511 and 188,047.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,511 : 188,047.50 = 188,047.50 : x
2. Step 2: Convert to fraction form
   131,511/188,047.50 = 188,047.50/x
3. Step 3: Cross multiply
   131,511x = 188,047.50 × 188,047.50
4. Step 4: Simplify right side
   131,511x = 35,361,862,256.25
5. Step 5: Solve for x
   x = 35,361,862,256.25/131,511
6. Step 6: Final answer
   x = 268,889.01