Finding the Third Proportional to 422,598 and 928,140

Step by Step Solution

1. Step 1: Write the proportion equation
   422,598 : 928,140 = 928,140 : x
2. Step 2: Convert to fraction form
   422,598/928,140 = 928,140/x
3. Step 3: Cross multiply
   422,598x = 928,140 × 928,140
4. Step 4: Simplify right side
   422,598x = 861,443,859,600
5. Step 5: Solve for x
   x = 861,443,859,600/422,598
6. Step 6: Final answer
   x = 2,038,447.55