Finding the Third Proportional to 123,146.16 and 265,289.34

Step by Step Solution

1. Step 1: Write the proportion equation
   123,146.16 : 265,289.34 = 265,289.34 : x
2. Step 2: Convert to fraction form
   123,146.16/265,289.34 = 265,289.34/x
3. Step 3: Cross multiply
   123,146.16x = 265,289.34 × 265,289.34
4. Step 4: Simplify right side
   123,146.16x = 70,378,435,907.31
5. Step 5: Solve for x
   x = 70,378,435,907.31/123,146.16
6. Step 6: Final answer
   x = 571,503.31