Finding the Third Proportional to 1,827,612 and 3,960,312

Step by Step Solution

1. Step 1: Write the proportion equation
   1,827,612 : 3,960,312 = 3,960,312 : x
2. Step 2: Convert to fraction form
   1,827,612/3,960,312 = 3,960,312/x
3. Step 3: Cross multiply
   1,827,612x = 3,960,312 × 3,960,312
4. Step 4: Simplify right side
   1,827,612x = 15,684,071,137,344
5. Step 5: Solve for x
   x = 15,684,071,137,344/1,827,612
6. Step 6: Final answer
   x = 8,581,729.13