Finding the Third Proportional to 2,155,389 and 3,381,153

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155,389 : 3,381,153 = 3,381,153 : x
2. Step 2: Convert to fraction form
   2,155,389/3,381,153 = 3,381,153/x
3. Step 3: Cross multiply
   2,155,389x = 3,381,153 × 3,381,153
4. Step 4: Simplify right side
   2,155,389x = 11,432,195,609,409
5. Step 5: Solve for x
   x = 11,432,195,609,409/2,155,389
6. Step 6: Final answer
   x = 5,304,005.73