Finding the Third Proportional to 2,992.50 and 7,042.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,992.50 : 7,042.50 = 7,042.50 : x
2. Step 2: Convert to fraction form
   2,992.50/7,042.50 = 7,042.50/x
3. Step 3: Cross multiply
   2,992.50x = 7,042.50 × 7,042.50
4. Step 4: Simplify right side
   2,992.50x = 49,596,806.25
5. Step 5: Solve for x
   x = 49,596,806.25/2,992.50
6. Step 6: Final answer
   x = 16,573.70