Finding the Third Proportional to 890,696 and 1,868,920

Step by Step Solution

1. Step 1: Write the proportion equation
   890,696 : 1,868,920 = 1,868,920 : x
2. Step 2: Convert to fraction form
   890,696/1,868,920 = 1,868,920/x
3. Step 3: Cross multiply
   890,696x = 1,868,920 × 1,868,920
4. Step 4: Simplify right side
   890,696x = 3,492,861,966,400
5. Step 5: Solve for x
   x = 3,492,861,966,400/890,696
6. Step 6: Final answer
   x = 3,921,497.31