Finding the Third Proportional to 838,172 and 1,810,264

Step by Step Solution

1. Step 1: Write the proportion equation
   838,172 : 1,810,264 = 1,810,264 : x
2. Step 2: Convert to fraction form
   838,172/1,810,264 = 1,810,264/x
3. Step 3: Cross multiply
   838,172x = 1,810,264 × 1,810,264
4. Step 4: Simplify right side
   838,172x = 3,277,055,749,696
5. Step 5: Solve for x
   x = 3,277,055,749,696/838,172
6. Step 6: Final answer
   x = 3,909,765.24