Finding the Third Proportional to 472,089 and 748,678.50

Step by Step Solution

1. Step 1: Write the proportion equation
   472,089 : 748,678.50 = 748,678.50 : x
2. Step 2: Convert to fraction form
   472,089/748,678.50 = 748,678.50/x
3. Step 3: Cross multiply
   472,089x = 748,678.50 × 748,678.50
4. Step 4: Simplify right side
   472,089x = 560,519,496,362.25
5. Step 5: Solve for x
   x = 560,519,496,362.25/472,089
6. Step 6: Final answer
   x = 1,187,317.43