Finding the Third Proportional to 28,198 and 61,978

Step by Step Solution

1. Step 1: Write the proportion equation
   28,198 : 61,978 = 61,978 : x
2. Step 2: Convert to fraction form
   28,198/61,978 = 61,978/x
3. Step 3: Cross multiply
   28,198x = 61,978 × 61,978
4. Step 4: Simplify right side
   28,198x = 3,841,272,484
5. Step 5: Solve for x
   x = 3,841,272,484/28,198
6. Step 6: Final answer
   x = 136,225.00