Finding the Third Proportional to 846,480 and 1,809,438

Step by Step Solution

1. Step 1: Write the proportion equation
   846,480 : 1,809,438 = 1,809,438 : x
2. Step 2: Convert to fraction form
   846,480/1,809,438 = 1,809,438/x
3. Step 3: Cross multiply
   846,480x = 1,809,438 × 1,809,438
4. Step 4: Simplify right side
   846,480x = 3,274,065,875,844
5. Step 5: Solve for x
   x = 3,274,065,875,844/846,480
6. Step 6: Final answer
   x = 3,867,859.70