Finding the Third Proportional to 478,866 and 714,147

Step by Step Solution

1. Step 1: Write the proportion equation
   478,866 : 714,147 = 714,147 : x
2. Step 2: Convert to fraction form
   478,866/714,147 = 714,147/x
3. Step 3: Cross multiply
   478,866x = 714,147 × 714,147
4. Step 4: Simplify right side
   478,866x = 510,005,937,609
5. Step 5: Solve for x
   x = 510,005,937,609/478,866
6. Step 6: Final answer
   x = 1,065,028.50