Finding the Third Proportional to 4,224,987 and 9,123,480

Step by Step Solution

1. Step 1: Write the proportion equation
   4,224,987 : 9,123,480 = 9,123,480 : x
2. Step 2: Convert to fraction form
   4,224,987/9,123,480 = 9,123,480/x
3. Step 3: Cross multiply
   4,224,987x = 9,123,480 × 9,123,480
4. Step 4: Simplify right side
   4,224,987x = 83,237,887,310,400
5. Step 5: Solve for x
   x = 83,237,887,310,400/4,224,987
6. Step 6: Final answer
   x = 19,701,335.72