Finding the Third Proportional to 907,200 and 2,118,960

Step by Step Solution

1. Step 1: Write the proportion equation
   907,200 : 2,118,960 = 2,118,960 : x
2. Step 2: Convert to fraction form
   907,200/2,118,960 = 2,118,960/x
3. Step 3: Cross multiply
   907,200x = 2,118,960 × 2,118,960
4. Step 4: Simplify right side
   907,200x = 4,489,991,481,600
5. Step 5: Solve for x
   x = 4,489,991,481,600/907,200
6. Step 6: Final answer
   x = 4,949,285.14