Finding the Third Proportional to 1,253,358 and 1,909,412

Step by Step Solution

1. Step 1: Write the proportion equation
   1,253,358 : 1,909,412 = 1,909,412 : x
2. Step 2: Convert to fraction form
   1,253,358/1,909,412 = 1,909,412/x
3. Step 3: Cross multiply
   1,253,358x = 1,909,412 × 1,909,412
4. Step 4: Simplify right side
   1,253,358x = 3,645,854,185,744
5. Step 5: Solve for x
   x = 3,645,854,185,744/1,253,358
6. Step 6: Final answer
   x = 2,908,868.96