Finding the Third Proportional to 6,438,564 and 8,713,062

Step by Step Solution

1. Step 1: Write the proportion equation
   6,438,564 : 8,713,062 = 8,713,062 : x
2. Step 2: Convert to fraction form
   6,438,564/8,713,062 = 8,713,062/x
3. Step 3: Cross multiply
   6,438,564x = 8,713,062 × 8,713,062
4. Step 4: Simplify right side
   6,438,564x = 75,917,449,415,844
5. Step 5: Solve for x
   x = 75,917,449,415,844/6,438,564
6. Step 6: Final answer
   x = 11,791,053.01