Finding the Third Proportional to 699,316.50 and 1,061,863.50

Step by Step Solution

1. Step 1: Write the proportion equation
   699,316.50 : 1,061,863.50 = 1,061,863.50 : x
2. Step 2: Convert to fraction form
   699,316.50/1,061,863.50 = 1,061,863.50/x
3. Step 3: Cross multiply
   699,316.50x = 1,061,863.50 × 1,061,863.50
4. Step 4: Simplify right side
   699,316.50x = 1,127,554,092,632.25
5. Step 5: Solve for x
   x = 1,127,554,092,632.25/699,316.50
6. Step 6: Final answer
   x = 1,612,365.92