Finding the Third Proportional to 157,231 and 339,369.50

Step by Step Solution

1. Step 1: Write the proportion equation
   157,231 : 339,369.50 = 339,369.50 : x
2. Step 2: Convert to fraction form
   157,231/339,369.50 = 339,369.50/x
3. Step 3: Cross multiply
   157,231x = 339,369.50 × 339,369.50
4. Step 4: Simplify right side
   157,231x = 115,171,657,530.25
5. Step 5: Solve for x
   x = 115,171,657,530.25/157,231
6. Step 6: Final answer
   x = 732,499.68