Finding the Third Proportional to 695,599.50 and 1,057,980

Step by Step Solution

1. Step 1: Write the proportion equation
   695,599.50 : 1,057,980 = 1,057,980 : x
2. Step 2: Convert to fraction form
   695,599.50/1,057,980 = 1,057,980/x
3. Step 3: Cross multiply
   695,599.50x = 1,057,980 × 1,057,980
4. Step 4: Simplify right side
   695,599.50x = 1,119,321,680,400
5. Step 5: Solve for x
   x = 1,119,321,680,400/695,599.50
6. Step 6: Final answer
   x = 1,609,146.76