Finding the Third Proportional to 763,121 and 1,657,456

Step by Step Solution

1. Step 1: Write the proportion equation
   763,121 : 1,657,456 = 1,657,456 : x
2. Step 2: Convert to fraction form
   763,121/1,657,456 = 1,657,456/x
3. Step 3: Cross multiply
   763,121x = 1,657,456 × 1,657,456
4. Step 4: Simplify right side
   763,121x = 2,747,160,391,936
5. Step 5: Solve for x
   x = 2,747,160,391,936/763,121
6. Step 6: Final answer
   x = 3,599,901.45