Finding the Third Proportional to 791,402 and 1,866,315

Step by Step Solution

1. Step 1: Write the proportion equation
   791,402 : 1,866,315 = 1,866,315 : x
2. Step 2: Convert to fraction form
   791,402/1,866,315 = 1,866,315/x
3. Step 3: Cross multiply
   791,402x = 1,866,315 × 1,866,315
4. Step 4: Simplify right side
   791,402x = 3,483,131,679,225
5. Step 5: Solve for x
   x = 3,483,131,679,225/791,402
6. Step 6: Final answer
   x = 4,401,216.68