Finding the Third Proportional to 1,359,254 and 2,159,418

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359,254 : 2,159,418 = 2,159,418 : x
2. Step 2: Convert to fraction form
   1,359,254/2,159,418 = 2,159,418/x
3. Step 3: Cross multiply
   1,359,254x = 2,159,418 × 2,159,418
4. Step 4: Simplify right side
   1,359,254x = 4,663,086,098,724
5. Step 5: Solve for x
   x = 4,663,086,098,724/1,359,254
6. Step 6: Final answer
   x = 3,430,621.58