Finding the Third Proportional to 478,267 and 714,846

Step by Step Solution

1. Step 1: Write the proportion equation
   478,267 : 714,846 = 714,846 : x
2. Step 2: Convert to fraction form
   478,267/714,846 = 714,846/x
3. Step 3: Cross multiply
   478,267x = 714,846 × 714,846
4. Step 4: Simplify right side
   478,267x = 511,004,803,716
5. Step 5: Solve for x
   x = 511,004,803,716/478,267
6. Step 6: Final answer
   x = 1,068,450.89