Finding the Third Proportional to 1,206,472 and 1,866,388

Step by Step Solution

1. Step 1: Write the proportion equation
   1,206,472 : 1,866,388 = 1,866,388 : x
2. Step 2: Convert to fraction form
   1,206,472/1,866,388 = 1,866,388/x
3. Step 3: Cross multiply
   1,206,472x = 1,866,388 × 1,866,388
4. Step 4: Simplify right side
   1,206,472x = 3,483,404,166,544
5. Step 5: Solve for x
   x = 3,483,404,166,544/1,206,472
6. Step 6: Final answer
   x = 2,887,264.82