Finding the Third Proportional to 653,018.25 and 989,383.88

Step by Step Solution

1. Step 1: Write the proportion equation
   653,018.25 : 989,383.88 = 989,383.88 : x
2. Step 2: Convert to fraction form
   653,018.25/989,383.88 = 989,383.88/x
3. Step 3: Cross multiply
   653,018.25x = 989,383.88 × 989,383.88
4. Step 4: Simplify right side
   653,018.25x = 978,880,452,110.02
5. Step 5: Solve for x
   x = 978,880,452,110.02/653,018.25
6. Step 6: Final answer
   x = 1,499,009.33