Finding the Third Proportional to 915,960 and 1,994,640

Step by Step Solution

1. Step 1: Write the proportion equation
   915,960 : 1,994,640 = 1,994,640 : x
2. Step 2: Convert to fraction form
   915,960/1,994,640 = 1,994,640/x
3. Step 3: Cross multiply
   915,960x = 1,994,640 × 1,994,640
4. Step 4: Simplify right side
   915,960x = 3,978,588,729,600
5. Step 5: Solve for x
   x = 3,978,588,729,600/915,960
6. Step 6: Final answer
   x = 4,343,627.16