Finding the Third Proportional to 3,638,164 and 7,921,774

Step by Step Solution

1. Step 1: Write the proportion equation
   3,638,164 : 7,921,774 = 7,921,774 : x
2. Step 2: Convert to fraction form
   3,638,164/7,921,774 = 7,921,774/x
3. Step 3: Cross multiply
   3,638,164x = 7,921,774 × 7,921,774
4. Step 4: Simplify right side
   3,638,164x = 62,754,503,307,076
5. Step 5: Solve for x
   x = 62,754,503,307,076/3,638,164
6. Step 6: Final answer
   x = 17,248,948.46