Finding the Third Proportional to 462,645 and 707,089.50

Step by Step Solution

1. Step 1: Write the proportion equation
   462,645 : 707,089.50 = 707,089.50 : x
2. Step 2: Convert to fraction form
   462,645/707,089.50 = 707,089.50/x
3. Step 3: Cross multiply
   462,645x = 707,089.50 × 707,089.50
4. Step 4: Simplify right side
   462,645x = 499,975,561,010.25
5. Step 5: Solve for x
   x = 499,975,561,010.25/462,645
6. Step 6: Final answer
   x = 1,080,689.43