Finding the Third Proportional to 31,866 and 70,086

Step by Step Solution

1. Step 1: Write the proportion equation
   31,866 : 70,086 = 70,086 : x
2. Step 2: Convert to fraction form
   31,866/70,086 = 70,086/x
3. Step 3: Cross multiply
   31,866x = 70,086 × 70,086
4. Step 4: Simplify right side
   31,866x = 4,912,047,396
5. Step 5: Solve for x
   x = 4,912,047,396/31,866
6. Step 6: Final answer
   x = 154,146.97