Finding the Third Proportional to 1,217,288 and 1,899,627

Step by Step Solution

1. Step 1: Write the proportion equation
   1,217,288 : 1,899,627 = 1,899,627 : x
2. Step 2: Convert to fraction form
   1,217,288/1,899,627 = 1,899,627/x
3. Step 3: Cross multiply
   1,217,288x = 1,899,627 × 1,899,627
4. Step 4: Simplify right side
   1,217,288x = 3,608,582,739,129
5. Step 5: Solve for x
   x = 3,608,582,739,129/1,217,288
6. Step 6: Final answer
   x = 2,964,444.52