Finding the Third Proportional to 3,370,840 and 5,140,216

Step by Step Solution

1. Step 1: Write the proportion equation
   3,370,840 : 5,140,216 = 5,140,216 : x
2. Step 2: Convert to fraction form
   3,370,840/5,140,216 = 5,140,216/x
3. Step 3: Cross multiply
   3,370,840x = 5,140,216 × 5,140,216
4. Step 4: Simplify right side
   3,370,840x = 26,421,820,526,656
5. Step 5: Solve for x
   x = 26,421,820,526,656/3,370,840
6. Step 6: Final answer
   x = 7,838,349.05