Finding the Third Proportional to 142,942.50 and 304,373.25

Step by Step Solution

1. Step 1: Write the proportion equation
   142,942.50 : 304,373.25 = 304,373.25 : x
2. Step 2: Convert to fraction form
   142,942.50/304,373.25 = 304,373.25/x
3. Step 3: Cross multiply
   142,942.50x = 304,373.25 × 304,373.25
4. Step 4: Simplify right side
   142,942.50x = 92,643,075,315.56
5. Step 5: Solve for x
   x = 92,643,075,315.56/142,942.50
6. Step 6: Final answer
   x = 648,114.28