Finding the Third Proportional to 4,173,122 and 9,143,284

Step by Step Solution

1. Step 1: Write the proportion equation
   4,173,122 : 9,143,284 = 9,143,284 : x
2. Step 2: Convert to fraction form
   4,173,122/9,143,284 = 9,143,284/x
3. Step 3: Cross multiply
   4,173,122x = 9,143,284 × 9,143,284
4. Step 4: Simplify right side
   4,173,122x = 83,599,642,304,656
5. Step 5: Solve for x
   x = 83,599,642,304,656/4,173,122
6. Step 6: Final answer
   x = 20,032,877.62