Finding the Third Proportional to 28,320,718.50 and 39,974,494.78

Step by Step Solution

1. Step 1: Write the proportion equation
   28,320,718.50 : 39,974,494.78 = 39,974,494.78 : x
2. Step 2: Convert to fraction form
   28,320,718.50/39,974,494.78 = 39,974,494.78/x
3. Step 3: Cross multiply
   28,320,718.50x = 39,974,494.78 × 39,974,494.78
4. Step 4: Simplify right side
   28,320,718.50x = 1,597,960,233,016,183.50
5. Step 5: Solve for x
   x = 1,597,960,233,016,183.50/28,320,718.50
6. Step 6: Final answer
   x = 56,423,717.96