Finding the Third Proportional to 112,709 and 168,710

Step by Step Solution

1. Step 1: Write the proportion equation
   112,709 : 168,710 = 168,710 : x
2. Step 2: Convert to fraction form
   112,709/168,710 = 168,710/x
3. Step 3: Cross multiply
   112,709x = 168,710 × 168,710
4. Step 4: Simplify right side
   112,709x = 28,463,064,100
5. Step 5: Solve for x
   x = 28,463,064,100/112,709
6. Step 6: Final answer
   x = 252,535.86