Finding the Third Proportional to 142,143 and 294,349.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,143 : 294,349.50 = 294,349.50 : x
2. Step 2: Convert to fraction form
   142,143/294,349.50 = 294,349.50/x
3. Step 3: Cross multiply
   142,143x = 294,349.50 × 294,349.50
4. Step 4: Simplify right side
   142,143x = 86,641,628,150.25
5. Step 5: Solve for x
   x = 86,641,628,150.25/142,143
6. Step 6: Final answer
   x = 609,538.48