Finding the Third Proportional to 30,068 and 64,308

Step by Step Solution

1. Step 1: Write the proportion equation
   30,068 : 64,308 = 64,308 : x
2. Step 2: Convert to fraction form
   30,068/64,308 = 64,308/x
3. Step 3: Cross multiply
   30,068x = 64,308 × 64,308
4. Step 4: Simplify right side
   30,068x = 4,135,518,864
5. Step 5: Solve for x
   x = 4,135,518,864/30,068
6. Step 6: Final answer
   x = 137,538.87