Finding the Third Proportional to 1,807,384 and 3,912,312

Step by Step Solution

1. Step 1: Write the proportion equation
   1,807,384 : 3,912,312 = 3,912,312 : x
2. Step 2: Convert to fraction form
   1,807,384/3,912,312 = 3,912,312/x
3. Step 3: Cross multiply
   1,807,384x = 3,912,312 × 3,912,312
4. Step 4: Simplify right side
   1,807,384x = 15,306,185,185,344
5. Step 5: Solve for x
   x = 15,306,185,185,344/1,807,384
6. Step 6: Final answer
   x = 8,468,695.74