Finding the Third Proportional to 2,100,188 and 4,580,484

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100,188 : 4,580,484 = 4,580,484 : x
2. Step 2: Convert to fraction form
   2,100,188/4,580,484 = 4,580,484/x
3. Step 3: Cross multiply
   2,100,188x = 4,580,484 × 4,580,484
4. Step 4: Simplify right side
   2,100,188x = 20,980,833,674,256
5. Step 5: Solve for x
   x = 20,980,833,674,256/2,100,188
6. Step 6: Final answer
   x = 9,989,978.84