Finding the Third Proportional to 121,229 and 265,030

Step by Step Solution

1. Step 1: Write the proportion equation
   121,229 : 265,030 = 265,030 : x
2. Step 2: Convert to fraction form
   121,229/265,030 = 265,030/x
3. Step 3: Cross multiply
   121,229x = 265,030 × 265,030
4. Step 4: Simplify right side
   121,229x = 70,240,900,900
5. Step 5: Solve for x
   x = 70,240,900,900/121,229
6. Step 6: Final answer
   x = 579,406.75