Finding the Third Proportional to 117,286.50 and 253,171.50

Step by Step Solution

1. Step 1: Write the proportion equation
   117,286.50 : 253,171.50 = 253,171.50 : x
2. Step 2: Convert to fraction form
   117,286.50/253,171.50 = 253,171.50/x
3. Step 3: Cross multiply
   117,286.50x = 253,171.50 × 253,171.50
4. Step 4: Simplify right side
   117,286.50x = 64,095,808,412.25
5. Step 5: Solve for x
   x = 64,095,808,412.25/117,286.50
6. Step 6: Final answer
   x = 546,489.22