Finding the Third Proportional to 148,436.50 and 302,057

Step by Step Solution

1. Step 1: Write the proportion equation
   148,436.50 : 302,057 = 302,057 : x
2. Step 2: Convert to fraction form
   148,436.50/302,057 = 302,057/x
3. Step 3: Cross multiply
   148,436.50x = 302,057 × 302,057
4. Step 4: Simplify right side
   148,436.50x = 91,238,431,249
5. Step 5: Solve for x
   x = 91,238,431,249/148,436.50
6. Step 6: Final answer
   x = 614,663.05