Finding the Third Proportional to 1,217,300 and 1,899,642

Step by Step Solution

1. Step 1: Write the proportion equation
   1,217,300 : 1,899,642 = 1,899,642 : x
2. Step 2: Convert to fraction form
   1,217,300/1,899,642 = 1,899,642/x
3. Step 3: Cross multiply
   1,217,300x = 1,899,642 × 1,899,642
4. Step 4: Simplify right side
   1,217,300x = 3,608,639,728,164
5. Step 5: Solve for x
   x = 3,608,639,728,164/1,217,300
6. Step 6: Final answer
   x = 2,964,462.11