Finding the Third Proportional to 45,091.69 and 74,661.75

Step by Step Solution

1. Step 1: Write the proportion equation
   45,091.69 : 74,661.75 = 74,661.75 : x
2. Step 2: Convert to fraction form
   45,091.69/74,661.75 = 74,661.75/x
3. Step 3: Cross multiply
   45,091.69x = 74,661.75 × 74,661.75
4. Step 4: Simplify right side
   45,091.69x = 5,574,376,913.06
5. Step 5: Solve for x
   x = 5,574,376,913.06/45,091.69
6. Step 6: Final answer
   x = 123,623.16