Finding the Third Proportional to 53,318 and 116,679.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,318 : 116,679.50 = 116,679.50 : x
2. Step 2: Convert to fraction form
   53,318/116,679.50 = 116,679.50/x
3. Step 3: Cross multiply
   53,318x = 116,679.50 × 116,679.50
4. Step 4: Simplify right side
   53,318x = 13,614,105,720.25
5. Step 5: Solve for x
   x = 13,614,105,720.25/53,318
6. Step 6: Final answer
   x = 255,337.89