Finding the Third Proportional to 401,886 and 859,045.50

Step by Step Solution

1. Step 1: Write the proportion equation
   401,886 : 859,045.50 = 859,045.50 : x
2. Step 2: Convert to fraction form
   401,886/859,045.50 = 859,045.50/x
3. Step 3: Cross multiply
   401,886x = 859,045.50 × 859,045.50
4. Step 4: Simplify right side
   401,886x = 737,959,171,070.25
5. Step 5: Solve for x
   x = 737,959,171,070.25/401,886
6. Step 6: Final answer
   x = 1,836,240.06