Finding the Third Proportional to 1,253,512 and 1,909,636

Step by Step Solution

1. Step 1: Write the proportion equation
   1,253,512 : 1,909,636 = 1,909,636 : x
2. Step 2: Convert to fraction form
   1,253,512/1,909,636 = 1,909,636/x
3. Step 3: Cross multiply
   1,253,512x = 1,909,636 × 1,909,636
4. Step 4: Simplify right side
   1,253,512x = 3,646,709,652,496
5. Step 5: Solve for x
   x = 3,646,709,652,496/1,253,512
6. Step 6: Final answer
   x = 2,909,194.05