Finding the Third Proportional to 2,129,484 and 4,644,354

Step by Step Solution

1. Step 1: Write the proportion equation
   2,129,484 : 4,644,354 = 4,644,354 : x
2. Step 2: Convert to fraction form
   2,129,484/4,644,354 = 4,644,354/x
3. Step 3: Cross multiply
   2,129,484x = 4,644,354 × 4,644,354
4. Step 4: Simplify right side
   2,129,484x = 21,570,024,077,316
5. Step 5: Solve for x
   x = 21,570,024,077,316/2,129,484
6. Step 6: Final answer
   x = 10,129,225.71