Finding the Third Proportional to 677,328.50 and 928,802.50

Step by Step Solution

1. Step 1: Write the proportion equation
   677,328.50 : 928,802.50 = 928,802.50 : x
2. Step 2: Convert to fraction form
   677,328.50/928,802.50 = 928,802.50/x
3. Step 3: Cross multiply
   677,328.50x = 928,802.50 × 928,802.50
4. Step 4: Simplify right side
   677,328.50x = 862,674,084,006.25
5. Step 5: Solve for x
   x = 862,674,084,006.25/677,328.50
6. Step 6: Final answer
   x = 1,273,642.09