Finding the Third Proportional to 989,173 and 1,488,399.50

Step by Step Solution

1. Step 1: Write the proportion equation
   989,173 : 1,488,399.50 = 1,488,399.50 : x
2. Step 2: Convert to fraction form
   989,173/1,488,399.50 = 1,488,399.50/x
3. Step 3: Cross multiply
   989,173x = 1,488,399.50 × 1,488,399.50
4. Step 4: Simplify right side
   989,173x = 2,215,333,071,600.25
5. Step 5: Solve for x
   x = 2,215,333,071,600.25/989,173
6. Step 6: Final answer
   x = 2,239,581.02