Finding the Third Proportional to 83,046 and 128,940

Step by Step Solution

1. Step 1: Write the proportion equation
   83,046 : 128,940 = 128,940 : x
2. Step 2: Convert to fraction form
   83,046/128,940 = 128,940/x
3. Step 3: Cross multiply
   83,046x = 128,940 × 128,940
4. Step 4: Simplify right side
   83,046x = 16,625,523,600
5. Step 5: Solve for x
   x = 16,625,523,600/83,046
6. Step 6: Final answer
   x = 200,196.56