Finding the Third Proportional to 428,782 and 846,718

Step by Step Solution

1. Step 1: Write the proportion equation
   428,782 : 846,718 = 846,718 : x
2. Step 2: Convert to fraction form
   428,782/846,718 = 846,718/x
3. Step 3: Cross multiply
   428,782x = 846,718 × 846,718
4. Step 4: Simplify right side
   428,782x = 716,931,371,524
5. Step 5: Solve for x
   x = 716,931,371,524/428,782
6. Step 6: Final answer
   x = 1,672,018.35