Finding the Third Proportional to 1,916,245 and 4,172,690

Step by Step Solution

1. Step 1: Write the proportion equation
   1,916,245 : 4,172,690 = 4,172,690 : x
2. Step 2: Convert to fraction form
   1,916,245/4,172,690 = 4,172,690/x
3. Step 3: Cross multiply
   1,916,245x = 4,172,690 × 4,172,690
4. Step 4: Simplify right side
   1,916,245x = 17,411,341,836,100
5. Step 5: Solve for x
   x = 17,411,341,836,100/1,916,245
6. Step 6: Final answer
   x = 9,086,177.31