Finding the Third Proportional to 10,123,218 and 21,782,710

Step by Step Solution

1. Step 1: Write the proportion equation
   10,123,218 : 21,782,710 = 21,782,710 : x
2. Step 2: Convert to fraction form
   10,123,218/21,782,710 = 21,782,710/x
3. Step 3: Cross multiply
   10,123,218x = 21,782,710 × 21,782,710
4. Step 4: Simplify right side
   10,123,218x = 474,486,454,944,100
5. Step 5: Solve for x
   x = 474,486,454,944,100/10,123,218
6. Step 6: Final answer
   x = 46,871,109.06