Finding the Third Proportional to 2,160,455 and 4,655,517

Step by Step Solution

1. Step 1: Write the proportion equation
   2,160,455 : 4,655,517 = 4,655,517 : x
2. Step 2: Convert to fraction form
   2,160,455/4,655,517 = 4,655,517/x
3. Step 3: Cross multiply
   2,160,455x = 4,655,517 × 4,655,517
4. Step 4: Simplify right side
   2,160,455x = 21,673,838,537,289
5. Step 5: Solve for x
   x = 21,673,838,537,289/2,160,455
6. Step 6: Final answer
   x = 10,032,071.27