Finding the Third Proportional to 123,274.50 and 265,277

Step by Step Solution

1. Step 1: Write the proportion equation
   123,274.50 : 265,277 = 265,277 : x
2. Step 2: Convert to fraction form
   123,274.50/265,277 = 265,277/x
3. Step 3: Cross multiply
   123,274.50x = 265,277 × 265,277
4. Step 4: Simplify right side
   123,274.50x = 70,371,886,729
5. Step 5: Solve for x
   x = 70,371,886,729/123,274.50
6. Step 6: Final answer
   x = 570,855.18