Finding the Third Proportional to 428,933.25 and 847,100.25

Step by Step Solution

1. Step 1: Write the proportion equation
   428,933.25 : 847,100.25 = 847,100.25 : x
2. Step 2: Convert to fraction form
   428,933.25/847,100.25 = 847,100.25/x
3. Step 3: Cross multiply
   428,933.25x = 847,100.25 × 847,100.25
4. Step 4: Simplify right side
   428,933.25x = 717,578,833,550.06
5. Step 5: Solve for x
   x = 717,578,833,550.06/428,933.25
6. Step 6: Final answer
   x = 1,672,938.23