Finding the Third Proportional to 851,580 and 1,859,904

Step by Step Solution

1. Step 1: Write the proportion equation
   851,580 : 1,859,904 = 1,859,904 : x
2. Step 2: Convert to fraction form
   851,580/1,859,904 = 1,859,904/x
3. Step 3: Cross multiply
   851,580x = 1,859,904 × 1,859,904
4. Step 4: Simplify right side
   851,580x = 3,459,242,889,216
5. Step 5: Solve for x
   x = 3,459,242,889,216/851,580
6. Step 6: Final answer
   x = 4,062,146.70