Finding the Third Proportional to 53,310 and 116,988

Step by Step Solution

1. Step 1: Write the proportion equation
   53,310 : 116,988 = 116,988 : x
2. Step 2: Convert to fraction form
   53,310/116,988 = 116,988/x
3. Step 3: Cross multiply
   53,310x = 116,988 × 116,988
4. Step 4: Simplify right side
   53,310x = 13,686,192,144
5. Step 5: Solve for x
   x = 13,686,192,144/53,310
6. Step 6: Final answer
   x = 256,728.42