Finding the Third Proportional to 4,987,710 and 10,721,340

Step by Step Solution

1. Step 1: Write the proportion equation
   4,987,710 : 10,721,340 = 10,721,340 : x
2. Step 2: Convert to fraction form
   4,987,710/10,721,340 = 10,721,340/x
3. Step 3: Cross multiply
   4,987,710x = 10,721,340 × 10,721,340
4. Step 4: Simplify right side
   4,987,710x = 114,947,131,395,600
5. Step 5: Solve for x
   x = 114,947,131,395,600/4,987,710
6. Step 6: Final answer
   x = 23,046,073.53