Finding the Third Proportional to 2,155,080 and 3,380,688

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155,080 : 3,380,688 = 3,380,688 : x
2. Step 2: Convert to fraction form
   2,155,080/3,380,688 = 3,380,688/x
3. Step 3: Cross multiply
   2,155,080x = 3,380,688 × 3,380,688
4. Step 4: Simplify right side
   2,155,080x = 11,429,051,353,344
5. Step 5: Solve for x
   x = 11,429,051,353,344/2,155,080
6. Step 6: Final answer
   x = 5,303,307.23