Finding the Third Proportional to 10,123,223.50 and 21,782,720

Step by Step Solution

1. Step 1: Write the proportion equation
   10,123,223.50 : 21,782,720 = 21,782,720 : x
2. Step 2: Convert to fraction form
   10,123,223.50/21,782,720 = 21,782,720/x
3. Step 3: Cross multiply
   10,123,223.50x = 21,782,720 × 21,782,720
4. Step 4: Simplify right side
   10,123,223.50x = 474,486,890,598,400
5. Step 5: Solve for x
   x = 474,486,890,598,400/10,123,223.50
6. Step 6: Final answer
   x = 46,871,126.63