Finding the Third Proportional to 74,275.50 and 109,774.50

Step by Step Solution

1. Step 1: Write the proportion equation
   74,275.50 : 109,774.50 = 109,774.50 : x
2. Step 2: Convert to fraction form
   74,275.50/109,774.50 = 109,774.50/x
3. Step 3: Cross multiply
   74,275.50x = 109,774.50 × 109,774.50
4. Step 4: Simplify right side
   74,275.50x = 12,050,440,850.25
5. Step 5: Solve for x
   x = 12,050,440,850.25/74,275.50
6. Step 6: Final answer
   x = 162,239.78