Finding the Third Proportional to 42,386 and 65,859

Step by Step Solution

1. Step 1: Write the proportion equation
   42,386 : 65,859 = 65,859 : x
2. Step 2: Convert to fraction form
   42,386/65,859 = 65,859/x
3. Step 3: Cross multiply
   42,386x = 65,859 × 65,859
4. Step 4: Simplify right side
   42,386x = 4,337,407,881
5. Step 5: Solve for x
   x = 4,337,407,881/42,386
6. Step 6: Final answer
   x = 102,331.14