Finding the Third Proportional to 2,106,490 and 4,538,385

Step by Step Solution

1. Step 1: Write the proportion equation
   2,106,490 : 4,538,385 = 4,538,385 : x
2. Step 2: Convert to fraction form
   2,106,490/4,538,385 = 4,538,385/x
3. Step 3: Cross multiply
   2,106,490x = 4,538,385 × 4,538,385
4. Step 4: Simplify right side
   2,106,490x = 20,596,938,408,225
5. Step 5: Solve for x
   x = 20,596,938,408,225/2,106,490
6. Step 6: Final answer
   x = 9,777,847.70