Finding the Third Proportional to 61,320 and 131,388

Step by Step Solution

1. Step 1: Write the proportion equation
   61,320 : 131,388 = 131,388 : x
2. Step 2: Convert to fraction form
   61,320/131,388 = 131,388/x
3. Step 3: Cross multiply
   61,320x = 131,388 × 131,388
4. Step 4: Simplify right side
   61,320x = 17,262,806,544
5. Step 5: Solve for x
   x = 17,262,806,544/61,320
6. Step 6: Final answer
   x = 281,520.00