Finding the Third Proportional to 137,606.50 and 303,147.50

Step by Step Solution

1. Step 1: Write the proportion equation
   137,606.50 : 303,147.50 = 303,147.50 : x
2. Step 2: Convert to fraction form
   137,606.50/303,147.50 = 303,147.50/x
3. Step 3: Cross multiply
   137,606.50x = 303,147.50 × 303,147.50
4. Step 4: Simplify right side
   137,606.50x = 91,898,406,756.25
5. Step 5: Solve for x
   x = 91,898,406,756.25/137,606.50
6. Step 6: Final answer
   x = 667,834.78