Finding the Third Proportional to 698,680 and 1,508,920

Step by Step Solution

1. Step 1: Write the proportion equation
   698,680 : 1,508,920 = 1,508,920 : x
2. Step 2: Convert to fraction form
   698,680/1,508,920 = 1,508,920/x
3. Step 3: Cross multiply
   698,680x = 1,508,920 × 1,508,920
4. Step 4: Simplify right side
   698,680x = 2,276,839,566,400
5. Step 5: Solve for x
   x = 2,276,839,566,400/698,680
6. Step 6: Final answer
   x = 3,258,773.07