Finding the Third Proportional to 2,157,230 and 4,690,984

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157,230 : 4,690,984 = 4,690,984 : x
2. Step 2: Convert to fraction form
   2,157,230/4,690,984 = 4,690,984/x
3. Step 3: Cross multiply
   2,157,230x = 4,690,984 × 4,690,984
4. Step 4: Simplify right side
   2,157,230x = 22,005,330,888,256
5. Step 5: Solve for x
   x = 22,005,330,888,256/2,157,230
6. Step 6: Final answer
   x = 10,200,734.69