Finding the Third Proportional to 129,249 and 186,158.25

Step by Step Solution

1. Step 1: Write the proportion equation
   129,249 : 186,158.25 = 186,158.25 : x
2. Step 2: Convert to fraction form
   129,249/186,158.25 = 186,158.25/x
3. Step 3: Cross multiply
   129,249x = 186,158.25 × 186,158.25
4. Step 4: Simplify right side
   129,249x = 34,654,894,043.06
5. Step 5: Solve for x
   x = 34,654,894,043.06/129,249
6. Step 6: Final answer
   x = 268,125.05