Finding the Third Proportional to 12,572 and 17,072

Step by Step Solution

1. Step 1: Write the proportion equation
   12,572 : 17,072 = 17,072 : x
2. Step 2: Convert to fraction form
   12,572/17,072 = 17,072/x
3. Step 3: Cross multiply
   12,572x = 17,072 × 17,072
4. Step 4: Simplify right side
   12,572x = 291,453,184
5. Step 5: Solve for x
   x = 291,453,184/12,572
6. Step 6: Final answer
   x = 23,182.72