Finding the Third Proportional to 2,157,826.50 and 3,221,964

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157,826.50 : 3,221,964 = 3,221,964 : x
2. Step 2: Convert to fraction form
   2,157,826.50/3,221,964 = 3,221,964/x
3. Step 3: Cross multiply
   2,157,826.50x = 3,221,964 × 3,221,964
4. Step 4: Simplify right side
   2,157,826.50x = 10,381,052,017,296
5. Step 5: Solve for x
   x = 10,381,052,017,296/2,157,826.50
6. Step 6: Final answer
   x = 4,810,883.55