Finding the Third Proportional to 30,160 and 64,328

Step by Step Solution

1. Step 1: Write the proportion equation
   30,160 : 64,328 = 64,328 : x
2. Step 2: Convert to fraction form
   30,160/64,328 = 64,328/x
3. Step 3: Cross multiply
   30,160x = 64,328 × 64,328
4. Step 4: Simplify right side
   30,160x = 4,138,091,584
5. Step 5: Solve for x
   x = 4,138,091,584/30,160
6. Step 6: Final answer
   x = 137,204.63