Finding the Third Proportional to 762,390 and 1,657,580

Step by Step Solution

1. Step 1: Write the proportion equation
   762,390 : 1,657,580 = 1,657,580 : x
2. Step 2: Convert to fraction form
   762,390/1,657,580 = 1,657,580/x
3. Step 3: Cross multiply
   762,390x = 1,657,580 × 1,657,580
4. Step 4: Simplify right side
   762,390x = 2,747,571,456,400
5. Step 5: Solve for x
   x = 2,747,571,456,400/762,390
6. Step 6: Final answer
   x = 3,603,892.31