Finding the Third Proportional to 791,418 and 1,866,369

Step by Step Solution

1. Step 1: Write the proportion equation
   791,418 : 1,866,369 = 1,866,369 : x
2. Step 2: Convert to fraction form
   791,418/1,866,369 = 1,866,369/x
3. Step 3: Cross multiply
   791,418x = 1,866,369 × 1,866,369
4. Step 4: Simplify right side
   791,418x = 3,483,333,244,161
5. Step 5: Solve for x
   x = 3,483,333,244,161/791,418
6. Step 6: Final answer
   x = 4,401,382.38