Finding the Third Proportional to 920,128.50 and 2,010,841.50

Step by Step Solution

1. Step 1: Write the proportion equation
   920,128.50 : 2,010,841.50 = 2,010,841.50 : x
2. Step 2: Convert to fraction form
   920,128.50/2,010,841.50 = 2,010,841.50/x
3. Step 3: Cross multiply
   920,128.50x = 2,010,841.50 × 2,010,841.50
4. Step 4: Simplify right side
   920,128.50x = 4,043,483,538,122.25
5. Step 5: Solve for x
   x = 4,043,483,538,122.25/920,128.50
6. Step 6: Final answer
   x = 4,394,477.01