Finding the Third Proportional to 328,650 and 707,116

Step by Step Solution

1. Step 1: Write the proportion equation
   328,650 : 707,116 = 707,116 : x
2. Step 2: Convert to fraction form
   328,650/707,116 = 707,116/x
3. Step 3: Cross multiply
   328,650x = 707,116 × 707,116
4. Step 4: Simplify right side
   328,650x = 500,013,037,456
5. Step 5: Solve for x
   x = 500,013,037,456/328,650
6. Step 6: Final answer
   x = 1,521,414.99