Finding the Third Proportional to 123,155.63 and 264,729

Step by Step Solution

1. Step 1: Write the proportion equation
   123,155.63 : 264,729 = 264,729 : x
2. Step 2: Convert to fraction form
   123,155.63/264,729 = 264,729/x
3. Step 3: Cross multiply
   123,155.63x = 264,729 × 264,729
4. Step 4: Simplify right side
   123,155.63x = 70,081,443,441
5. Step 5: Solve for x
   x = 70,081,443,441/123,155.63
6. Step 6: Final answer
   x = 569,047.85