Finding the Third Proportional to 142,953.50 and 304,906.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,953.50 : 304,906.50 = 304,906.50 : x
2. Step 2: Convert to fraction form
   142,953.50/304,906.50 = 304,906.50/x
3. Step 3: Cross multiply
   142,953.50x = 304,906.50 × 304,906.50
4. Step 4: Simplify right side
   142,953.50x = 92,967,973,742.25
5. Step 5: Solve for x
   x = 92,967,973,742.25/142,953.50
6. Step 6: Final answer
   x = 650,337.16