Finding the Third Proportional to 30,162.38 and 64,330.45

Step by Step Solution

1. Step 1: Write the proportion equation
   30,162.38 : 64,330.45 = 64,330.45 : x
2. Step 2: Convert to fraction form
   30,162.38/64,330.45 = 64,330.45/x
3. Step 3: Cross multiply
   30,162.38x = 64,330.45 × 64,330.45
4. Step 4: Simplify right side
   30,162.38x = 4,138,407,199.27
5. Step 5: Solve for x
   x = 4,138,407,199.27/30,162.38
6. Step 6: Final answer
   x = 137,204.29