Finding the Third Proportional to 1,012,842 and 1,603,828.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,012,842 : 1,603,828.50 = 1,603,828.50 : x
2. Step 2: Convert to fraction form
   1,012,842/1,603,828.50 = 1,603,828.50/x
3. Step 3: Cross multiply
   1,012,842x = 1,603,828.50 × 1,603,828.50
4. Step 4: Simplify right side
   1,012,842x = 2,572,265,857,412.25
5. Step 5: Solve for x
   x = 2,572,265,857,412.25/1,012,842
6. Step 6: Final answer
   x = 2,539,651.65