Finding the Third Proportional to 1,418,292 and 2,128,889

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418,292 : 2,128,889 = 2,128,889 : x
2. Step 2: Convert to fraction form
   1,418,292/2,128,889 = 2,128,889/x
3. Step 3: Cross multiply
   1,418,292x = 2,128,889 × 2,128,889
4. Step 4: Simplify right side
   1,418,292x = 4,532,168,374,321
5. Step 5: Solve for x
   x = 4,532,168,374,321/1,418,292
6. Step 6: Final answer
   x = 3,195,511.48