Finding the Third Proportional to 812,890.50 and 1,786,669.50

Step by Step Solution

1. Step 1: Write the proportion equation
   812,890.50 : 1,786,669.50 = 1,786,669.50 : x
2. Step 2: Convert to fraction form
   812,890.50/1,786,669.50 = 1,786,669.50/x
3. Step 3: Cross multiply
   812,890.50x = 1,786,669.50 × 1,786,669.50
4. Step 4: Simplify right side
   812,890.50x = 3,192,187,902,230.25
5. Step 5: Solve for x
   x = 3,192,187,902,230.25/812,890.50
6. Step 6: Final answer
   x = 3,926,959.29