Finding the Third Proportional to 581,601 and 785,605.50

Step by Step Solution

1. Step 1: Write the proportion equation
   581,601 : 785,605.50 = 785,605.50 : x
2. Step 2: Convert to fraction form
   581,601/785,605.50 = 785,605.50/x
3. Step 3: Cross multiply
   581,601x = 785,605.50 × 785,605.50
4. Step 4: Simplify right side
   581,601x = 617,176,001,630.25
5. Step 5: Solve for x
   x = 617,176,001,630.25/581,601
6. Step 6: Final answer
   x = 1,061,167.37