Finding the Third Proportional to 1,018,605 and 2,158,633.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,605 : 2,158,633.50 = 2,158,633.50 : x
2. Step 2: Convert to fraction form
   1,018,605/2,158,633.50 = 2,158,633.50/x
3. Step 3: Cross multiply
   1,018,605x = 2,158,633.50 × 2,158,633.50
4. Step 4: Simplify right side
   1,018,605x = 4,659,698,587,322.25
5. Step 5: Solve for x
   x = 4,659,698,587,322.25/1,018,605
6. Step 6: Final answer
   x = 4,574,588.37