Finding the Third Proportional to 816,601.50 and 877,837.50

Step by Step Solution

1. Step 1: Write the proportion equation
   816,601.50 : 877,837.50 = 877,837.50 : x
2. Step 2: Convert to fraction form
   816,601.50/877,837.50 = 877,837.50/x
3. Step 3: Cross multiply
   816,601.50x = 877,837.50 × 877,837.50
4. Step 4: Simplify right side
   816,601.50x = 770,598,676,406.25
5. Step 5: Solve for x
   x = 770,598,676,406.25/816,601.50
6. Step 6: Final answer
   x = 943,665.52