Finding the Third Proportional to 181,521 and 266,449.50

Step by Step Solution

1. Step 1: Write the proportion equation
   181,521 : 266,449.50 = 266,449.50 : x
2. Step 2: Convert to fraction form
   181,521/266,449.50 = 266,449.50/x
3. Step 3: Cross multiply
   181,521x = 266,449.50 × 266,449.50
4. Step 4: Simplify right side
   181,521x = 70,995,336,050.25
5. Step 5: Solve for x
   x = 70,995,336,050.25/181,521
6. Step 6: Final answer
   x = 391,113.62