Finding the Third Proportional to 480,645 and 724,648.50

Step by Step Solution

1. Step 1: Write the proportion equation
   480,645 : 724,648.50 = 724,648.50 : x
2. Step 2: Convert to fraction form
   480,645/724,648.50 = 724,648.50/x
3. Step 3: Cross multiply
   480,645x = 724,648.50 × 724,648.50
4. Step 4: Simplify right side
   480,645x = 525,115,448,552.25
5. Step 5: Solve for x
   x = 525,115,448,552.25/480,645
6. Step 6: Final answer
   x = 1,092,522.44