Finding the Third Proportional to 3,986,912 and 5,979,069

Step by Step Solution

1. Step 1: Write the proportion equation
   3,986,912 : 5,979,069 = 5,979,069 : x
2. Step 2: Convert to fraction form
   3,986,912/5,979,069 = 5,979,069/x
3. Step 3: Cross multiply
   3,986,912x = 5,979,069 × 5,979,069
4. Step 4: Simplify right side
   3,986,912x = 35,749,266,106,761
5. Step 5: Solve for x
   x = 35,749,266,106,761/3,986,912
6. Step 6: Final answer
   x = 8,966,655.42