Finding the Third Proportional to 1,718,893 and 3,642,688

Step by Step Solution

1. Step 1: Write the proportion equation
   1,718,893 : 3,642,688 = 3,642,688 : x
2. Step 2: Convert to fraction form
   1,718,893/3,642,688 = 3,642,688/x
3. Step 3: Cross multiply
   1,718,893x = 3,642,688 × 3,642,688
4. Step 4: Simplify right side
   1,718,893x = 13,269,175,865,344
5. Step 5: Solve for x
   x = 13,269,175,865,344/1,718,893
6. Step 6: Final answer
   x = 7,719,605.51