Finding the Third Proportional to 386,935.50 and 801,210

Step by Step Solution

1. Step 1: Write the proportion equation
   386,935.50 : 801,210 = 801,210 : x
2. Step 2: Convert to fraction form
   386,935.50/801,210 = 801,210/x
3. Step 3: Cross multiply
   386,935.50x = 801,210 × 801,210
4. Step 4: Simplify right side
   386,935.50x = 641,937,464,100
5. Step 5: Solve for x
   x = 641,937,464,100/386,935.50
6. Step 6: Final answer
   x = 1,659,029.64