Finding the Third Proportional to 208,132.50 and 431,034

Step by Step Solution

1. Step 1: Write the proportion equation
   208,132.50 : 431,034 = 431,034 : x
2. Step 2: Convert to fraction form
   208,132.50/431,034 = 431,034/x
3. Step 3: Cross multiply
   208,132.50x = 431,034 × 431,034
4. Step 4: Simplify right side
   208,132.50x = 185,790,309,156
5. Step 5: Solve for x
   x = 185,790,309,156/208,132.50
6. Step 6: Final answer
   x = 892,654.00