Finding the Third Proportional to 48,978 and 75,978

Step by Step Solution

1. Step 1: Write the proportion equation
   48,978 : 75,978 = 75,978 : x
2. Step 2: Convert to fraction form
   48,978/75,978 = 75,978/x
3. Step 3: Cross multiply
   48,978x = 75,978 × 75,978
4. Step 4: Simplify right side
   48,978x = 5,772,656,484
5. Step 5: Solve for x
   x = 5,772,656,484/48,978
6. Step 6: Final answer
   x = 117,862.23