Finding the Third Proportional to 3,246,620 and 5,140,664

Step by Step Solution

1. Step 1: Write the proportion equation
   3,246,620 : 5,140,664 = 5,140,664 : x
2. Step 2: Convert to fraction form
   3,246,620/5,140,664 = 5,140,664/x
3. Step 3: Cross multiply
   3,246,620x = 5,140,664 × 5,140,664
4. Step 4: Simplify right side
   3,246,620x = 26,426,426,360,896
5. Step 5: Solve for x
   x = 26,426,426,360,896/3,246,620
6. Step 6: Final answer
   x = 8,139,673.37