Finding the Third Proportional to 920,821.50 and 2,008,900.50

Step by Step Solution

1. Step 1: Write the proportion equation
   920,821.50 : 2,008,900.50 = 2,008,900.50 : x
2. Step 2: Convert to fraction form
   920,821.50/2,008,900.50 = 2,008,900.50/x
3. Step 3: Cross multiply
   920,821.50x = 2,008,900.50 × 2,008,900.50
4. Step 4: Simplify right side
   920,821.50x = 4,035,681,218,900.25
5. Step 5: Solve for x
   x = 4,035,681,218,900.25/920,821.50
6. Step 6: Final answer
   x = 4,382,696.56