Finding the Third Proportional to 142,513.50 and 301,119

Step by Step Solution

1. Step 1: Write the proportion equation
   142,513.50 : 301,119 = 301,119 : x
2. Step 2: Convert to fraction form
   142,513.50/301,119 = 301,119/x
3. Step 3: Cross multiply
   142,513.50x = 301,119 × 301,119
4. Step 4: Simplify right side
   142,513.50x = 90,672,652,161
5. Step 5: Solve for x
   x = 90,672,652,161/142,513.50
6. Step 6: Final answer
   x = 636,239.04