Finding the Third Proportional to 878,514.50 and 1,328,834.50

Step by Step Solution

1. Step 1: Write the proportion equation
   878,514.50 : 1,328,834.50 = 1,328,834.50 : x
2. Step 2: Convert to fraction form
   878,514.50/1,328,834.50 = 1,328,834.50/x
3. Step 3: Cross multiply
   878,514.50x = 1,328,834.50 × 1,328,834.50
4. Step 4: Simplify right side
   878,514.50x = 1,765,801,128,390.25
5. Step 5: Solve for x
   x = 1,765,801,128,390.25/878,514.50
6. Step 6: Final answer
   x = 2,009,985.18