Finding the Third Proportional to 906,120 and 2,116,260

Step by Step Solution

1. Step 1: Write the proportion equation
   906,120 : 2,116,260 = 2,116,260 : x
2. Step 2: Convert to fraction form
   906,120/2,116,260 = 2,116,260/x
3. Step 3: Cross multiply
   906,120x = 2,116,260 × 2,116,260
4. Step 4: Simplify right side
   906,120x = 4,478,556,387,600
5. Step 5: Solve for x
   x = 4,478,556,387,600/906,120
6. Step 6: Final answer
   x = 4,942,564.33