Finding the Third Proportional to 857,156 and 1,866,700

Step by Step Solution

1. Step 1: Write the proportion equation
   857,156 : 1,866,700 = 1,866,700 : x
2. Step 2: Convert to fraction form
   857,156/1,866,700 = 1,866,700/x
3. Step 3: Cross multiply
   857,156x = 1,866,700 × 1,866,700
4. Step 4: Simplify right side
   857,156x = 3,484,568,890,000
5. Step 5: Solve for x
   x = 3,484,568,890,000/857,156
6. Step 6: Final answer
   x = 4,065,268.04