Finding the Third Proportional to 54,426 and 84,064

Step by Step Solution

1. Step 1: Write the proportion equation
   54,426 : 84,064 = 84,064 : x
2. Step 2: Convert to fraction form
   54,426/84,064 = 84,064/x
3. Step 3: Cross multiply
   54,426x = 84,064 × 84,064
4. Step 4: Simplify right side
   54,426x = 7,066,756,096
5. Step 5: Solve for x
   x = 7,066,756,096/54,426
6. Step 6: Final answer
   x = 129,841.55