Finding the Third Proportional to 117,293 and 256,088.50

Step by Step Solution

1. Step 1: Write the proportion equation
   117,293 : 256,088.50 = 256,088.50 : x
2. Step 2: Convert to fraction form
   117,293/256,088.50 = 256,088.50/x
3. Step 3: Cross multiply
   117,293x = 256,088.50 × 256,088.50
4. Step 4: Simplify right side
   117,293x = 65,581,319,832.25
5. Step 5: Solve for x
   x = 65,581,319,832.25/117,293
6. Step 6: Final answer
   x = 559,123.90