Finding the Third Proportional to 181,662 and 399,166.50

Step by Step Solution

1. Step 1: Write the proportion equation
   181,662 : 399,166.50 = 399,166.50 : x
2. Step 2: Convert to fraction form
   181,662/399,166.50 = 399,166.50/x
3. Step 3: Cross multiply
   181,662x = 399,166.50 × 399,166.50
4. Step 4: Simplify right side
   181,662x = 159,333,894,722.25
5. Step 5: Solve for x
   x = 159,333,894,722.25/181,662
6. Step 6: Final answer
   x = 877,089.84