Finding the Third Proportional to 953,858 and 2,021,440

Step by Step Solution

1. Step 1: Write the proportion equation
   953,858 : 2,021,440 = 2,021,440 : x
2. Step 2: Convert to fraction form
   953,858/2,021,440 = 2,021,440/x
3. Step 3: Cross multiply
   953,858x = 2,021,440 × 2,021,440
4. Step 4: Simplify right side
   953,858x = 4,086,219,673,600
5. Step 5: Solve for x
   x = 4,086,219,673,600/953,858
6. Step 6: Final answer
   x = 4,283,886.78