Finding the Third Proportional to 6,666,642 and 9,439,442

Step by Step Solution

1. Step 1: Write the proportion equation
   6,666,642 : 9,439,442 = 9,439,442 : x
2. Step 2: Convert to fraction form
   6,666,642/9,439,442 = 9,439,442/x
3. Step 3: Cross multiply
   6,666,642x = 9,439,442 × 9,439,442
4. Step 4: Simplify right side
   6,666,642x = 89,103,065,271,364
5. Step 5: Solve for x
   x = 89,103,065,271,364/6,666,642
6. Step 6: Final answer
   x = 13,365,509.24