Finding the Third Proportional to 503,019.50 and 785,147

Step by Step Solution

1. Step 1: Write the proportion equation
   503,019.50 : 785,147 = 785,147 : x
2. Step 2: Convert to fraction form
   503,019.50/785,147 = 785,147/x
3. Step 3: Cross multiply
   503,019.50x = 785,147 × 785,147
4. Step 4: Simplify right side
   503,019.50x = 616,455,811,609
5. Step 5: Solve for x
   x = 616,455,811,609/503,019.50
6. Step 6: Final answer
   x = 1,225,510.76