Finding the Third Proportional to 503,016 and 785,141.50

Step by Step Solution

1. Step 1: Write the proportion equation
   503,016 : 785,141.50 = 785,141.50 : x
2. Step 2: Convert to fraction form
   503,016/785,141.50 = 785,141.50/x
3. Step 3: Cross multiply
   503,016x = 785,141.50 × 785,141.50
4. Step 4: Simplify right side
   503,016x = 616,447,175,022.25
5. Step 5: Solve for x
   x = 616,447,175,022.25/503,016
6. Step 6: Final answer
   x = 1,225,502.12