Finding the Third Proportional to 1,919,376 and 4,200,336

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919,376 : 4,200,336 = 4,200,336 : x
2. Step 2: Convert to fraction form
   1,919,376/4,200,336 = 4,200,336/x
3. Step 3: Cross multiply
   1,919,376x = 4,200,336 × 4,200,336
4. Step 4: Simplify right side
   1,919,376x = 17,642,822,512,896
5. Step 5: Solve for x
   x = 17,642,822,512,896/1,919,376
6. Step 6: Final answer
   x = 9,191,957.44