Finding the Third Proportional to 846,580 and 1,278,510

Step by Step Solution

1. Step 1: Write the proportion equation
   846,580 : 1,278,510 = 1,278,510 : x
2. Step 2: Convert to fraction form
   846,580/1,278,510 = 1,278,510/x
3. Step 3: Cross multiply
   846,580x = 1,278,510 × 1,278,510
4. Step 4: Simplify right side
   846,580x = 1,634,587,820,100
5. Step 5: Solve for x
   x = 1,634,587,820,100/846,580
6. Step 6: Final answer
   x = 1,930,813.18