Finding the Third Proportional to 478,863 and 714,141

Step by Step Solution

1. Step 1: Write the proportion equation
   478,863 : 714,141 = 714,141 : x
2. Step 2: Convert to fraction form
   478,863/714,141 = 714,141/x
3. Step 3: Cross multiply
   478,863x = 714,141 × 714,141
4. Step 4: Simplify right side
   478,863x = 509,997,367,881
5. Step 5: Solve for x
   x = 509,997,367,881/478,863
6. Step 6: Final answer
   x = 1,065,017.28