Finding the Third Proportional to 456,328.50 and 709,386

Step by Step Solution

1. Step 1: Write the proportion equation
   456,328.50 : 709,386 = 709,386 : x
2. Step 2: Convert to fraction form
   456,328.50/709,386 = 709,386/x
3. Step 3: Cross multiply
   456,328.50x = 709,386 × 709,386
4. Step 4: Simplify right side
   456,328.50x = 503,228,496,996
5. Step 5: Solve for x
   x = 503,228,496,996/456,328.50
6. Step 6: Final answer
   x = 1,102,776.83