Finding the Third Proportional to 328,552.50 and 706,188

Step by Step Solution

1. Step 1: Write the proportion equation
   328,552.50 : 706,188 = 706,188 : x
2. Step 2: Convert to fraction form
   328,552.50/706,188 = 706,188/x
3. Step 3: Cross multiply
   328,552.50x = 706,188 × 706,188
4. Step 4: Simplify right side
   328,552.50x = 498,701,491,344
5. Step 5: Solve for x
   x = 498,701,491,344/328,552.50
6. Step 6: Final answer
   x = 1,517,874.59