Finding the Third Proportional to 123,616 and 265,861

Step by Step Solution

1. Step 1: Write the proportion equation
   123,616 : 265,861 = 265,861 : x
2. Step 2: Convert to fraction form
   123,616/265,861 = 265,861/x
3. Step 3: Cross multiply
   123,616x = 265,861 × 265,861
4. Step 4: Simplify right side
   123,616x = 70,682,071,321
5. Step 5: Solve for x
   x = 70,682,071,321/123,616
6. Step 6: Final answer
   x = 571,787.40