Finding the Third Proportional to 1,219,138 and 1,898,508

Step by Step Solution

1. Step 1: Write the proportion equation
   1,219,138 : 1,898,508 = 1,898,508 : x
2. Step 2: Convert to fraction form
   1,219,138/1,898,508 = 1,898,508/x
3. Step 3: Cross multiply
   1,219,138x = 1,898,508 × 1,898,508
4. Step 4: Simplify right side
   1,219,138x = 3,604,332,626,064
5. Step 5: Solve for x
   x = 3,604,332,626,064/1,219,138
6. Step 6: Final answer
   x = 2,956,459.91