Finding the Third Proportional to 6,559,258.78 and 10,288,521.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,559,258.78 : 10,288,521.42 = 10,288,521.42 : x
2. Step 2: Convert to fraction form
   6,559,258.78/10,288,521.42 = 10,288,521.42/x
3. Step 3: Cross multiply
   6,559,258.78x = 10,288,521.42 × 10,288,521.42
4. Step 4: Simplify right side
   6,559,258.78x = 105,853,673,048,380.77
5. Step 5: Solve for x
   x = 105,853,673,048,380.77/6,559,258.78
6. Step 6: Final answer
   x = 16,138,054.10