Finding the Third Proportional to 1,379,464 and 2,128,242

Step by Step Solution

1. Step 1: Write the proportion equation
   1,379,464 : 2,128,242 = 2,128,242 : x
2. Step 2: Convert to fraction form
   1,379,464/2,128,242 = 2,128,242/x
3. Step 3: Cross multiply
   1,379,464x = 2,128,242 × 2,128,242
4. Step 4: Simplify right side
   1,379,464x = 4,529,414,010,564
5. Step 5: Solve for x
   x = 4,529,414,010,564/1,379,464
6. Step 6: Final answer
   x = 3,283,459.38