Finding the Third Proportional to 4,723,021 and 9,782,109

Step by Step Solution

1. Step 1: Write the proportion equation
   4,723,021 : 9,782,109 = 9,782,109 : x
2. Step 2: Convert to fraction form
   4,723,021/9,782,109 = 9,782,109/x
3. Step 3: Cross multiply
   4,723,021x = 9,782,109 × 9,782,109
4. Step 4: Simplify right side
   4,723,021x = 95,689,656,487,881
5. Step 5: Solve for x
   x = 95,689,656,487,881/4,723,021
6. Step 6: Final answer
   x = 20,260,264.88