Finding the Third Proportional to 236,339 and 354,680.50

Step by Step Solution

1. Step 1: Write the proportion equation
   236,339 : 354,680.50 = 354,680.50 : x
2. Step 2: Convert to fraction form
   236,339/354,680.50 = 354,680.50/x
3. Step 3: Cross multiply
   236,339x = 354,680.50 × 354,680.50
4. Step 4: Simplify right side
   236,339x = 125,798,257,080.25
5. Step 5: Solve for x
   x = 125,798,257,080.25/236,339
6. Step 6: Final answer
   x = 532,278.88