Finding the Third Proportional to 478,972 and 798,253.50

Step by Step Solution

1. Step 1: Write the proportion equation
   478,972 : 798,253.50 = 798,253.50 : x
2. Step 2: Convert to fraction form
   478,972/798,253.50 = 798,253.50/x
3. Step 3: Cross multiply
   478,972x = 798,253.50 × 798,253.50
4. Step 4: Simplify right side
   478,972x = 637,208,650,262.25
5. Step 5: Solve for x
   x = 637,208,650,262.25/478,972
6. Step 6: Final answer
   x = 1,330,367.22