Finding the Third Proportional to 242,059.50 and 512,910

Step by Step Solution

1. Step 1: Write the proportion equation
   242,059.50 : 512,910 = 512,910 : x
2. Step 2: Convert to fraction form
   242,059.50/512,910 = 512,910/x
3. Step 3: Cross multiply
   242,059.50x = 512,910 × 512,910
4. Step 4: Simplify right side
   242,059.50x = 263,076,668,100
5. Step 5: Solve for x
   x = 263,076,668,100/242,059.50
6. Step 6: Final answer
   x = 1,086,826.45