Finding the Third Proportional to 106,558 and 142,158

Step by Step Solution

1. Step 1: Write the proportion equation
   106,558 : 142,158 = 142,158 : x
2. Step 2: Convert to fraction form
   106,558/142,158 = 142,158/x
3. Step 3: Cross multiply
   106,558x = 142,158 × 142,158
4. Step 4: Simplify right side
   106,558x = 20,208,896,964
5. Step 5: Solve for x
   x = 20,208,896,964/106,558
6. Step 6: Final answer
   x = 189,651.62