Finding the Third Proportional to 62,408 and 137,290

Step by Step Solution

1. Step 1: Write the proportion equation
   62,408 : 137,290 = 137,290 : x
2. Step 2: Convert to fraction form
   62,408/137,290 = 137,290/x
3. Step 3: Cross multiply
   62,408x = 137,290 × 137,290
4. Step 4: Simplify right side
   62,408x = 18,848,544,100
5. Step 5: Solve for x
   x = 18,848,544,100/62,408
6. Step 6: Final answer
   x = 302,021.28