Finding the Third Proportional to 5,490,224 and 7,920,372

Step by Step Solution

1. Step 1: Write the proportion equation
   5,490,224 : 7,920,372 = 7,920,372 : x
2. Step 2: Convert to fraction form
   5,490,224/7,920,372 = 7,920,372/x
3. Step 3: Cross multiply
   5,490,224x = 7,920,372 × 7,920,372
4. Step 4: Simplify right side
   5,490,224x = 62,732,292,618,384
5. Step 5: Solve for x
   x = 62,732,292,618,384/5,490,224
6. Step 6: Final answer
   x = 11,426,180.90