Finding the Third Proportional to 4,224,912 and 9,123,204

Step by Step Solution

1. Step 1: Write the proportion equation
   4,224,912 : 9,123,204 = 9,123,204 : x
2. Step 2: Convert to fraction form
   4,224,912/9,123,204 = 9,123,204/x
3. Step 3: Cross multiply
   4,224,912x = 9,123,204 × 9,123,204
4. Step 4: Simplify right side
   4,224,912x = 83,232,851,225,616
5. Step 5: Solve for x
   x = 83,232,851,225,616/4,224,912
6. Step 6: Final answer
   x = 19,700,493.46