Finding the Third Proportional to 123,317 and 265,349.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,317 : 265,349.50 = 265,349.50 : x
2. Step 2: Convert to fraction form
   123,317/265,349.50 = 265,349.50/x
3. Step 3: Cross multiply
   123,317x = 265,349.50 × 265,349.50
4. Step 4: Simplify right side
   123,317x = 70,410,357,150.25
5. Step 5: Solve for x
   x = 70,410,357,150.25/123,317
6. Step 6: Final answer
   x = 570,970.40