Finding the Third Proportional to 50,609.25 and 74,272.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,609.25 : 74,272.50 = 74,272.50 : x
2. Step 2: Convert to fraction form
   50,609.25/74,272.50 = 74,272.50/x
3. Step 3: Cross multiply
   50,609.25x = 74,272.50 × 74,272.50
4. Step 4: Simplify right side
   50,609.25x = 5,516,404,256.25
5. Step 5: Solve for x
   x = 5,516,404,256.25/50,609.25
6. Step 6: Final answer
   x = 108,999.92