Finding the Third Proportional to 136,051.50 and 280,836

Step by Step Solution

1. Step 1: Write the proportion equation
   136,051.50 : 280,836 = 280,836 : x
2. Step 2: Convert to fraction form
   136,051.50/280,836 = 280,836/x
3. Step 3: Cross multiply
   136,051.50x = 280,836 × 280,836
4. Step 4: Simplify right side
   136,051.50x = 78,868,858,896
5. Step 5: Solve for x
   x = 78,868,858,896/136,051.50
6. Step 6: Final answer
   x = 579,698.56