Finding the Third Proportional to 226,317 and 340,042.50

Step by Step Solution

1. Step 1: Write the proportion equation
   226,317 : 340,042.50 = 340,042.50 : x
2. Step 2: Convert to fraction form
   226,317/340,042.50 = 340,042.50/x
3. Step 3: Cross multiply
   226,317x = 340,042.50 × 340,042.50
4. Step 4: Simplify right side
   226,317x = 115,628,901,806.25
5. Step 5: Solve for x
   x = 115,628,901,806.25/226,317
6. Step 6: Final answer
   x = 510,915.67