Finding the Third Proportional to 6,419,180 and 9,971,646

Step by Step Solution

1. Step 1: Write the proportion equation
   6,419,180 : 9,971,646 = 9,971,646 : x
2. Step 2: Convert to fraction form
   6,419,180/9,971,646 = 9,971,646/x
3. Step 3: Cross multiply
   6,419,180x = 9,971,646 × 9,971,646
4. Step 4: Simplify right side
   6,419,180x = 99,433,723,949,316
5. Step 5: Solve for x
   x = 99,433,723,949,316/6,419,180
6. Step 6: Final answer
   x = 15,490,097.48