Finding the Third Proportional to 272,487.86 and 636,452.03

Step by Step Solution

1. Step 1: Write the proportion equation
   272,487.86 : 636,452.03 = 636,452.03 : x
2. Step 2: Convert to fraction form
   272,487.86/636,452.03 = 636,452.03/x
3. Step 3: Cross multiply
   272,487.86x = 636,452.03 × 636,452.03
4. Step 4: Simplify right side
   272,487.86x = 405,071,188,082.25
5. Step 5: Solve for x
   x = 405,071,188,082.25/272,487.86
6. Step 6: Final answer
   x = 1,486,566.00