Finding the Third Proportional to 1,249,808 and 1,866,523

Step by Step Solution

1. Step 1: Write the proportion equation
   1,249,808 : 1,866,523 = 1,866,523 : x
2. Step 2: Convert to fraction form
   1,249,808/1,866,523 = 1,866,523/x
3. Step 3: Cross multiply
   1,249,808x = 1,866,523 × 1,866,523
4. Step 4: Simplify right side
   1,249,808x = 3,483,908,109,529
5. Step 5: Solve for x
   x = 3,483,908,109,529/1,249,808
6. Step 6: Final answer
   x = 2,787,554.66