Finding the Third Proportional to 13,200 and 27,490

Step by Step Solution

1. Step 1: Write the proportion equation
   13,200 : 27,490 = 27,490 : x
2. Step 2: Convert to fraction form
   13,200/27,490 = 27,490/x
3. Step 3: Cross multiply
   13,200x = 27,490 × 27,490
4. Step 4: Simplify right side
   13,200x = 755,700,100
5. Step 5: Solve for x
   x = 755,700,100/13,200
6. Step 6: Final answer
   x = 57,250.01