Finding the Third Proportional to 654,390 and 1,384,230

Step by Step Solution

1. Step 1: Write the proportion equation
   654,390 : 1,384,230 = 1,384,230 : x
2. Step 2: Convert to fraction form
   654,390/1,384,230 = 1,384,230/x
3. Step 3: Cross multiply
   654,390x = 1,384,230 × 1,384,230
4. Step 4: Simplify right side
   654,390x = 1,916,092,692,900
5. Step 5: Solve for x
   x = 1,916,092,692,900/654,390
6. Step 6: Final answer
   x = 2,928,059.25