Finding the Third Proportional to 61,886.25 and 90,183.38

Step by Step Solution

1. Step 1: Write the proportion equation
   61,886.25 : 90,183.38 = 90,183.38 : x
2. Step 2: Convert to fraction form
   61,886.25/90,183.38 = 90,183.38/x
3. Step 3: Cross multiply
   61,886.25x = 90,183.38 × 90,183.38
4. Step 4: Simplify right side
   61,886.25x = 8,133,041,126.39
5. Step 5: Solve for x
   x = 8,133,041,126.39/61,886.25
6. Step 6: Final answer
   x = 131,419.19