Finding the Third Proportional to 136,450 and 210,499

Step by Step Solution

1. Step 1: Write the proportion equation
   136,450 : 210,499 = 210,499 : x
2. Step 2: Convert to fraction form
   136,450/210,499 = 210,499/x
3. Step 3: Cross multiply
   136,450x = 210,499 × 210,499
4. Step 4: Simplify right side
   136,450x = 44,309,829,001
5. Step 5: Solve for x
   x = 44,309,829,001/136,450
6. Step 6: Final answer
   x = 324,733.08