Finding the Third Proportional to 722,640 and 1,073,520

Step by Step Solution

1. Step 1: Write the proportion equation
   722,640 : 1,073,520 = 1,073,520 : x
2. Step 2: Convert to fraction form
   722,640/1,073,520 = 1,073,520/x
3. Step 3: Cross multiply
   722,640x = 1,073,520 × 1,073,520
4. Step 4: Simplify right side
   722,640x = 1,152,445,190,400
5. Step 5: Solve for x
   x = 1,152,445,190,400/722,640
6. Step 6: Final answer
   x = 1,594,770.83