Finding the Third Proportional to 30,294 and 64,908

Step by Step Solution

1. Step 1: Write the proportion equation
   30,294 : 64,908 = 64,908 : x
2. Step 2: Convert to fraction form
   30,294/64,908 = 64,908/x
3. Step 3: Cross multiply
   30,294x = 64,908 × 64,908
4. Step 4: Simplify right side
   30,294x = 4,213,048,464
5. Step 5: Solve for x
   x = 4,213,048,464/30,294
6. Step 6: Final answer
   x = 139,072.04