Finding the Third Proportional to 1,253,353 and 1,909,406

Step by Step Solution

1. Step 1: Write the proportion equation
   1,253,353 : 1,909,406 = 1,909,406 : x
2. Step 2: Convert to fraction form
   1,253,353/1,909,406 = 1,909,406/x
3. Step 3: Cross multiply
   1,253,353x = 1,909,406 × 1,909,406
4. Step 4: Simplify right side
   1,253,353x = 3,645,831,272,836
5. Step 5: Solve for x
   x = 3,645,831,272,836/1,253,353
6. Step 6: Final answer
   x = 2,908,862.29