Finding the Third Proportional to 28,396.50 and 42,992.75

Step by Step Solution

1. Step 1: Write the proportion equation
   28,396.50 : 42,992.75 = 42,992.75 : x
2. Step 2: Convert to fraction form
   28,396.50/42,992.75 = 42,992.75/x
3. Step 3: Cross multiply
   28,396.50x = 42,992.75 × 42,992.75
4. Step 4: Simplify right side
   28,396.50x = 1,848,376,552.56
5. Step 5: Solve for x
   x = 1,848,376,552.56/28,396.50
6. Step 6: Final answer
   x = 65,091.70