Finding the Third Proportional to 356,355 and 756,436.50

Step by Step Solution

1. Step 1: Write the proportion equation
   356,355 : 756,436.50 = 756,436.50 : x
2. Step 2: Convert to fraction form
   356,355/756,436.50 = 756,436.50/x
3. Step 3: Cross multiply
   356,355x = 756,436.50 × 756,436.50
4. Step 4: Simplify right side
   356,355x = 572,196,178,532.25
5. Step 5: Solve for x
   x = 572,196,178,532.25/356,355
6. Step 6: Final answer
   x = 1,605,691.46