Finding the Third Proportional to 870,805 and 1,345,041.50

Step by Step Solution

1. Step 1: Write the proportion equation
   870,805 : 1,345,041.50 = 1,345,041.50 : x
2. Step 2: Convert to fraction form
   870,805/1,345,041.50 = 1,345,041.50/x
3. Step 3: Cross multiply
   870,805x = 1,345,041.50 × 1,345,041.50
4. Step 4: Simplify right side
   870,805x = 1,809,136,636,722.25
5. Step 5: Solve for x
   x = 1,809,136,636,722.25/870,805
6. Step 6: Final answer
   x = 2,077,545.07