Finding the Third Proportional to 142,088 and 236,788

Step by Step Solution

1. Step 1: Write the proportion equation
   142,088 : 236,788 = 236,788 : x
2. Step 2: Convert to fraction form
   142,088/236,788 = 236,788/x
3. Step 3: Cross multiply
   142,088x = 236,788 × 236,788
4. Step 4: Simplify right side
   142,088x = 56,068,556,944
5. Step 5: Solve for x
   x = 56,068,556,944/142,088
6. Step 6: Final answer
   x = 394,604.45