Finding the Third Proportional to 148,389.50 and 349,940.50

Step by Step Solution

1. Step 1: Write the proportion equation
   148,389.50 : 349,940.50 = 349,940.50 : x
2. Step 2: Convert to fraction form
   148,389.50/349,940.50 = 349,940.50/x
3. Step 3: Cross multiply
   148,389.50x = 349,940.50 × 349,940.50
4. Step 4: Simplify right side
   148,389.50x = 122,458,353,540.25
5. Step 5: Solve for x
   x = 122,458,353,540.25/148,389.50
6. Step 6: Final answer
   x = 825,249.45