Finding the Third Proportional to 53,400 and 83,768

Step by Step Solution

1. Step 1: Write the proportion equation
   53,400 : 83,768 = 83,768 : x
2. Step 2: Convert to fraction form
   53,400/83,768 = 83,768/x
3. Step 3: Cross multiply
   53,400x = 83,768 × 83,768
4. Step 4: Simplify right side
   53,400x = 7,017,077,824
5. Step 5: Solve for x
   x = 7,017,077,824/53,400
6. Step 6: Final answer
   x = 131,405.95