Finding the Third Proportional to 400,714 and 846,140

Step by Step Solution

1. Step 1: Write the proportion equation
   400,714 : 846,140 = 846,140 : x
2. Step 2: Convert to fraction form
   400,714/846,140 = 846,140/x
3. Step 3: Cross multiply
   400,714x = 846,140 × 846,140
4. Step 4: Simplify right side
   400,714x = 715,952,899,600
5. Step 5: Solve for x
   x = 715,952,899,600/400,714
6. Step 6: Final answer
   x = 1,786,693.00