Finding the Third Proportional to 478,868 and 714,149.50

Step by Step Solution

1. Step 1: Write the proportion equation
   478,868 : 714,149.50 = 714,149.50 : x
2. Step 2: Convert to fraction form
   478,868/714,149.50 = 714,149.50/x
3. Step 3: Cross multiply
   478,868x = 714,149.50 × 714,149.50
4. Step 4: Simplify right side
   478,868x = 510,009,508,350.25
5. Step 5: Solve for x
   x = 510,009,508,350.25/478,868
6. Step 6: Final answer
   x = 1,065,031.51