Finding the Third Proportional to 6,146,404.50 and 8,879,728.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,146,404.50 : 8,879,728.50 = 8,879,728.50 : x
2. Step 2: Convert to fraction form
   6,146,404.50/8,879,728.50 = 8,879,728.50/x
3. Step 3: Cross multiply
   6,146,404.50x = 8,879,728.50 × 8,879,728.50
4. Step 4: Simplify right side
   6,146,404.50x = 78,849,578,233,712.25
5. Step 5: Solve for x
   x = 78,849,578,233,712.25/6,146,404.50
6. Step 6: Final answer
   x = 12,828,569.65