Finding the Third Proportional to 17,644,620 and 26,985,978

Step by Step Solution

1. Step 1: Write the proportion equation
   17,644,620 : 26,985,978 = 26,985,978 : x
2. Step 2: Convert to fraction form
   17,644,620/26,985,978 = 26,985,978/x
3. Step 3: Cross multiply
   17,644,620x = 26,985,978 × 26,985,978
4. Step 4: Simplify right side
   17,644,620x = 728,243,008,616,484
5. Step 5: Solve for x
   x = 728,243,008,616,484/17,644,620
6. Step 6: Final answer
   x = 41,272,807.72