Finding the Third Proportional to 677,416.50 and 928,902

Step by Step Solution

1. Step 1: Write the proportion equation
   677,416.50 : 928,902 = 928,902 : x
2. Step 2: Convert to fraction form
   677,416.50/928,902 = 928,902/x
3. Step 3: Cross multiply
   677,416.50x = 928,902 × 928,902
4. Step 4: Simplify right side
   677,416.50x = 862,858,925,604
5. Step 5: Solve for x
   x = 862,858,925,604/677,416.50
6. Step 6: Final answer
   x = 1,273,749.50