Finding the Third Proportional to 4,987,602 and 10,721,109

Step by Step Solution

1. Step 1: Write the proportion equation
   4,987,602 : 10,721,109 = 10,721,109 : x
2. Step 2: Convert to fraction form
   4,987,602/10,721,109 = 10,721,109/x
3. Step 3: Cross multiply
   4,987,602x = 10,721,109 × 10,721,109
4. Step 4: Simplify right side
   4,987,602x = 114,942,178,189,881
5. Step 5: Solve for x
   x = 114,942,178,189,881/4,987,602
6. Step 6: Final answer
   x = 23,045,579.46