Finding the Third Proportional to 1,807,142 and 3,929,068

Step by Step Solution

1. Step 1: Write the proportion equation
   1,807,142 : 3,929,068 = 3,929,068 : x
2. Step 2: Convert to fraction form
   1,807,142/3,929,068 = 3,929,068/x
3. Step 3: Cross multiply
   1,807,142x = 3,929,068 × 3,929,068
4. Step 4: Simplify right side
   1,807,142x = 15,437,575,348,624
5. Step 5: Solve for x
   x = 15,437,575,348,624/1,807,142
6. Step 6: Final answer
   x = 8,542,535.87