Finding the Third Proportional to 123,141.75 and 265,930.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,141.75 : 265,930.50 = 265,930.50 : x
2. Step 2: Convert to fraction form
   123,141.75/265,930.50 = 265,930.50/x
3. Step 3: Cross multiply
   123,141.75x = 265,930.50 × 265,930.50
4. Step 4: Simplify right side
   123,141.75x = 70,719,030,830.25
5. Step 5: Solve for x
   x = 70,719,030,830.25/123,141.75
6. Step 6: Final answer
   x = 574,289.64