Finding the Third Proportional to 60,840 and 90,852

Step by Step Solution

1. Step 1: Write the proportion equation
   60,840 : 90,852 = 90,852 : x
2. Step 2: Convert to fraction form
   60,840/90,852 = 90,852/x
3. Step 3: Cross multiply
   60,840x = 90,852 × 90,852
4. Step 4: Simplify right side
   60,840x = 8,254,085,904
5. Step 5: Solve for x
   x = 8,254,085,904/60,840
6. Step 6: Final answer
   x = 135,668.74