Finding the Third Proportional to 1,400,992 and 2,218,776

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400,992 : 2,218,776 = 2,218,776 : x
2. Step 2: Convert to fraction form
   1,400,992/2,218,776 = 2,218,776/x
3. Step 3: Cross multiply
   1,400,992x = 2,218,776 × 2,218,776
4. Step 4: Simplify right side
   1,400,992x = 4,922,966,938,176
5. Step 5: Solve for x
   x = 4,922,966,938,176/1,400,992
6. Step 6: Final answer
   x = 3,513,915.10