Finding the Third Proportional to 781,916 and 1,698,320

Step by Step Solution

1. Step 1: Write the proportion equation
   781,916 : 1,698,320 = 1,698,320 : x
2. Step 2: Convert to fraction form
   781,916/1,698,320 = 1,698,320/x
3. Step 3: Cross multiply
   781,916x = 1,698,320 × 1,698,320
4. Step 4: Simplify right side
   781,916x = 2,884,290,822,400
5. Step 5: Solve for x
   x = 2,884,290,822,400/781,916
6. Step 6: Final answer
   x = 3,688,747.67