Finding the Third Proportional to 155,349 and 207,634.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,349 : 207,634.50 = 207,634.50 : x
2. Step 2: Convert to fraction form
   155,349/207,634.50 = 207,634.50/x
3. Step 3: Cross multiply
   155,349x = 207,634.50 × 207,634.50
4. Step 4: Simplify right side
   155,349x = 43,112,085,590.25
5. Step 5: Solve for x
   x = 43,112,085,590.25/155,349
6. Step 6: Final answer
   x = 277,517.63