Finding the Third Proportional to 1,917,588 and 4,260,840

Step by Step Solution

1. Step 1: Write the proportion equation
   1,917,588 : 4,260,840 = 4,260,840 : x
2. Step 2: Convert to fraction form
   1,917,588/4,260,840 = 4,260,840/x
3. Step 3: Cross multiply
   1,917,588x = 4,260,840 × 4,260,840
4. Step 4: Simplify right side
   1,917,588x = 18,154,757,505,600
5. Step 5: Solve for x
   x = 18,154,757,505,600/1,917,588
6. Step 6: Final answer
   x = 9,467,496.41