Finding the Third Proportional to 306,049.50 and 662,940

Step by Step Solution

1. Step 1: Write the proportion equation
   306,049.50 : 662,940 = 662,940 : x
2. Step 2: Convert to fraction form
   306,049.50/662,940 = 662,940/x
3. Step 3: Cross multiply
   306,049.50x = 662,940 × 662,940
4. Step 4: Simplify right side
   306,049.50x = 439,489,443,600
5. Step 5: Solve for x
   x = 439,489,443,600/306,049.50
6. Step 6: Final answer
   x = 1,436,007.72