Finding the Third Proportional to 38,406 and 56,240

Step by Step Solution

1. Step 1: Write the proportion equation
   38,406 : 56,240 = 56,240 : x
2. Step 2: Convert to fraction form
   38,406/56,240 = 56,240/x
3. Step 3: Cross multiply
   38,406x = 56,240 × 56,240
4. Step 4: Simplify right side
   38,406x = 3,162,937,600
5. Step 5: Solve for x
   x = 3,162,937,600/38,406
6. Step 6: Final answer
   x = 82,355.30