Finding the Third Proportional to 12,970.50 and 28,287

Step by Step Solution

1. Step 1: Write the proportion equation
   12,970.50 : 28,287 = 28,287 : x
2. Step 2: Convert to fraction form
   12,970.50/28,287 = 28,287/x
3. Step 3: Cross multiply
   12,970.50x = 28,287 × 28,287
4. Step 4: Simplify right side
   12,970.50x = 800,154,369
5. Step 5: Solve for x
   x = 800,154,369/12,970.50
6. Step 6: Final answer
   x = 61,690.33