Finding the Third Proportional to 838,264 and 1,715,264

Step by Step Solution

1. Step 1: Write the proportion equation
   838,264 : 1,715,264 = 1,715,264 : x
2. Step 2: Convert to fraction form
   838,264/1,715,264 = 1,715,264/x
3. Step 3: Cross multiply
   838,264x = 1,715,264 × 1,715,264
4. Step 4: Simplify right side
   838,264x = 2,942,130,589,696
5. Step 5: Solve for x
   x = 2,942,130,589,696/838,264
6. Step 6: Final answer
   x = 3,509,789.98