Finding the Third Proportional to 61,654.50 and 133,128

Step by Step Solution

1. Step 1: Write the proportion equation
   61,654.50 : 133,128 = 133,128 : x
2. Step 2: Convert to fraction form
   61,654.50/133,128 = 133,128/x
3. Step 3: Cross multiply
   61,654.50x = 133,128 × 133,128
4. Step 4: Simplify right side
   61,654.50x = 17,723,064,384
5. Step 5: Solve for x
   x = 17,723,064,384/61,654.50
6. Step 6: Final answer
   x = 287,457.76