Finding the Third Proportional to 65,172 and 133,788

Step by Step Solution

1. Step 1: Write the proportion equation
   65,172 : 133,788 = 133,788 : x
2. Step 2: Convert to fraction form
   65,172/133,788 = 133,788/x
3. Step 3: Cross multiply
   65,172x = 133,788 × 133,788
4. Step 4: Simplify right side
   65,172x = 17,899,228,944
5. Step 5: Solve for x
   x = 17,899,228,944/65,172
6. Step 6: Final answer
   x = 274,646.00