Finding the Third Proportional to 910,440 and 1,989,036

Step by Step Solution

1. Step 1: Write the proportion equation
   910,440 : 1,989,036 = 1,989,036 : x
2. Step 2: Convert to fraction form
   910,440/1,989,036 = 1,989,036/x
3. Step 3: Cross multiply
   910,440x = 1,989,036 × 1,989,036
4. Step 4: Simplify right side
   910,440x = 3,956,264,209,296
5. Step 5: Solve for x
   x = 3,956,264,209,296/910,440
6. Step 6: Final answer
   x = 4,345,441.99