Finding the Third Proportional to 918,243 and 1,947,645

Step by Step Solution

1. Step 1: Write the proportion equation
   918,243 : 1,947,645 = 1,947,645 : x
2. Step 2: Convert to fraction form
   918,243/1,947,645 = 1,947,645/x
3. Step 3: Cross multiply
   918,243x = 1,947,645 × 1,947,645
4. Step 4: Simplify right side
   918,243x = 3,793,321,046,025
5. Step 5: Solve for x
   x = 3,793,321,046,025/918,243
6. Step 6: Final answer
   x = 4,131,064.49