Finding the Third Proportional to 216,085 and 341,886

Step by Step Solution

1. Step 1: Write the proportion equation
   216,085 : 341,886 = 341,886 : x
2. Step 2: Convert to fraction form
   216,085/341,886 = 341,886/x
3. Step 3: Cross multiply
   216,085x = 341,886 × 341,886
4. Step 4: Simplify right side
   216,085x = 116,886,036,996
5. Step 5: Solve for x
   x = 116,886,036,996/216,085
6. Step 6: Final answer
   x = 540,926.20