Finding the Third Proportional to 906,968 and 1,977,240

Step by Step Solution

1. Step 1: Write the proportion equation
   906,968 : 1,977,240 = 1,977,240 : x
2. Step 2: Convert to fraction form
   906,968/1,977,240 = 1,977,240/x
3. Step 3: Cross multiply
   906,968x = 1,977,240 × 1,977,240
4. Step 4: Simplify right side
   906,968x = 3,909,478,017,600
5. Step 5: Solve for x
   x = 3,909,478,017,600/906,968
6. Step 6: Final answer
   x = 4,310,491.68