Finding the Third Proportional to 6,419,156 and 9,971,607

Step by Step Solution

1. Step 1: Write the proportion equation
   6,419,156 : 9,971,607 = 9,971,607 : x
2. Step 2: Convert to fraction form
   6,419,156/9,971,607 = 9,971,607/x
3. Step 3: Cross multiply
   6,419,156x = 9,971,607 × 9,971,607
4. Step 4: Simplify right side
   6,419,156x = 99,432,946,162,449
5. Step 5: Solve for x
   x = 99,432,946,162,449/6,419,156
6. Step 6: Final answer
   x = 15,490,034.23