Finding the Third Proportional to 26,357.50 and 42,156.50

Step by Step Solution

1. Step 1: Write the proportion equation
   26,357.50 : 42,156.50 = 42,156.50 : x
2. Step 2: Convert to fraction form
   26,357.50/42,156.50 = 42,156.50/x
3. Step 3: Cross multiply
   26,357.50x = 42,156.50 × 42,156.50
4. Step 4: Simplify right side
   26,357.50x = 1,777,170,492.25
5. Step 5: Solve for x
   x = 1,777,170,492.25/26,357.50
6. Step 6: Final answer
   x = 67,425.61