Finding the Third Proportional to 35,424 and 55,287

Step by Step Solution

1. Step 1: Write the proportion equation
   35,424 : 55,287 = 55,287 : x
2. Step 2: Convert to fraction form
   35,424/55,287 = 55,287/x
3. Step 3: Cross multiply
   35,424x = 55,287 × 55,287
4. Step 4: Simplify right side
   35,424x = 3,056,652,369
5. Step 5: Solve for x
   x = 3,056,652,369/35,424
6. Step 6: Final answer
   x = 86,287.61