Finding the Third Proportional to 141,139.50 and 302,745

Step by Step Solution

1. Step 1: Write the proportion equation
   141,139.50 : 302,745 = 302,745 : x
2. Step 2: Convert to fraction form
   141,139.50/302,745 = 302,745/x
3. Step 3: Cross multiply
   141,139.50x = 302,745 × 302,745
4. Step 4: Simplify right side
   141,139.50x = 91,654,535,025
5. Step 5: Solve for x
   x = 91,654,535,025/141,139.50
6. Step 6: Final answer
   x = 649,389.68