Finding the Third Proportional to 72,136 and 112,908

Step by Step Solution

1. Step 1: Write the proportion equation
   72,136 : 112,908 = 112,908 : x
2. Step 2: Convert to fraction form
   72,136/112,908 = 112,908/x
3. Step 3: Cross multiply
   72,136x = 112,908 × 112,908
4. Step 4: Simplify right side
   72,136x = 12,748,216,464
5. Step 5: Solve for x
   x = 12,748,216,464/72,136
6. Step 6: Final answer
   x = 176,724.75