Finding the Third Proportional to 28,856 and 42,258

Step by Step Solution

1. Step 1: Write the proportion equation
   28,856 : 42,258 = 42,258 : x
2. Step 2: Convert to fraction form
   28,856/42,258 = 42,258/x
3. Step 3: Cross multiply
   28,856x = 42,258 × 42,258
4. Step 4: Simplify right side
   28,856x = 1,785,738,564
5. Step 5: Solve for x
   x = 1,785,738,564/28,856
6. Step 6: Final answer
   x = 61,884.48