Finding the Third Proportional to 123,318 and 265,351.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,318 : 265,351.50 = 265,351.50 : x
2. Step 2: Convert to fraction form
   123,318/265,351.50 = 265,351.50/x
3. Step 3: Cross multiply
   123,318x = 265,351.50 × 265,351.50
4. Step 4: Simplify right side
   123,318x = 70,411,418,552.25
5. Step 5: Solve for x
   x = 70,411,418,552.25/123,318
6. Step 6: Final answer
   x = 570,974.38