Finding the Third Proportional to 1,385,646 and 2,977,572

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385,646 : 2,977,572 = 2,977,572 : x
2. Step 2: Convert to fraction form
   1,385,646/2,977,572 = 2,977,572/x
3. Step 3: Cross multiply
   1,385,646x = 2,977,572 × 2,977,572
4. Step 4: Simplify right side
   1,385,646x = 8,865,935,015,184
5. Step 5: Solve for x
   x = 8,865,935,015,184/1,385,646
6. Step 6: Final answer
   x = 6,398,412.74