Finding the Third Proportional to 1,946,438 and 4,259,442

Step by Step Solution

1. Step 1: Write the proportion equation
   1,946,438 : 4,259,442 = 4,259,442 : x
2. Step 2: Convert to fraction form
   1,946,438/4,259,442 = 4,259,442/x
3. Step 3: Cross multiply
   1,946,438x = 4,259,442 × 4,259,442
4. Step 4: Simplify right side
   1,946,438x = 18,142,846,151,364
5. Step 5: Solve for x
   x = 18,142,846,151,364/1,946,438
6. Step 6: Final answer
   x = 9,321,050.12