Finding the Third Proportional to 2,591,172 and 5,348,312

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591,172 : 5,348,312 = 5,348,312 : x
2. Step 2: Convert to fraction form
   2,591,172/5,348,312 = 5,348,312/x
3. Step 3: Cross multiply
   2,591,172x = 5,348,312 × 5,348,312
4. Step 4: Simplify right side
   2,591,172x = 28,604,441,249,344
5. Step 5: Solve for x
   x = 28,604,441,249,344/2,591,172
6. Step 6: Final answer
   x = 11,039,190.47