Finding the Third Proportional to 123,066 and 264,991.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,066 : 264,991.50 = 264,991.50 : x
2. Step 2: Convert to fraction form
   123,066/264,991.50 = 264,991.50/x
3. Step 3: Cross multiply
   123,066x = 264,991.50 × 264,991.50
4. Step 4: Simplify right side
   123,066x = 70,220,495,072.25
5. Step 5: Solve for x
   x = 70,220,495,072.25/123,066
6. Step 6: Final answer
   x = 570,592.16