Finding the Third Proportional to 59,229 and 128,299.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,229 : 128,299.50 = 128,299.50 : x
2. Step 2: Convert to fraction form
   59,229/128,299.50 = 128,299.50/x
3. Step 3: Cross multiply
   59,229x = 128,299.50 × 128,299.50
4. Step 4: Simplify right side
   59,229x = 16,460,761,700.25
5. Step 5: Solve for x
   x = 16,460,761,700.25/59,229
6. Step 6: Final answer
   x = 277,917.27