Finding the Third Proportional to 574,810.50 and 870,168

Step by Step Solution

1. Step 1: Write the proportion equation
   574,810.50 : 870,168 = 870,168 : x
2. Step 2: Convert to fraction form
   574,810.50/870,168 = 870,168/x
3. Step 3: Cross multiply
   574,810.50x = 870,168 × 870,168
4. Step 4: Simplify right side
   574,810.50x = 757,192,348,224
5. Step 5: Solve for x
   x = 757,192,348,224/574,810.50
6. Step 6: Final answer
   x = 1,317,290.39