Finding the Third Proportional to 820,854 and 1,152,913.50

Step by Step Solution

1. Step 1: Write the proportion equation
   820,854 : 1,152,913.50 = 1,152,913.50 : x
2. Step 2: Convert to fraction form
   820,854/1,152,913.50 = 1,152,913.50/x
3. Step 3: Cross multiply
   820,854x = 1,152,913.50 × 1,152,913.50
4. Step 4: Simplify right side
   820,854x = 1,329,209,538,482.25
5. Step 5: Solve for x
   x = 1,329,209,538,482.25/820,854
6. Step 6: Final answer
   x = 1,619,300.80