Finding the Third Proportional to 653,160 and 989,584.50

Step by Step Solution

1. Step 1: Write the proportion equation
   653,160 : 989,584.50 = 989,584.50 : x
2. Step 2: Convert to fraction form
   653,160/989,584.50 = 989,584.50/x
3. Step 3: Cross multiply
   653,160x = 989,584.50 × 989,584.50
4. Step 4: Simplify right side
   653,160x = 979,277,482,640.25
5. Step 5: Solve for x
   x = 979,277,482,640.25/653,160
6. Step 6: Final answer
   x = 1,499,291.88