Finding the Third Proportional to 59,291,350.50 and 128,479,558.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,291,350.50 : 128,479,558.50 = 128,479,558.50 : x
2. Step 2: Convert to fraction form
   59,291,350.50/128,479,558.50 = 128,479,558.50/x
3. Step 3: Cross multiply
   59,291,350.50x = 128,479,558.50 × 128,479,558.50
4. Step 4: Simplify right side
   59,291,350.50x = 16,506,996,952,354,922
5. Step 5: Solve for x
   x = 16,506,996,952,354,922/59,291,350.50
6. Step 6: Final answer
   x = 278,404,806.32