Finding the Third Proportional to 602,826 and 820,948.50

Step by Step Solution

1. Step 1: Write the proportion equation
   602,826 : 820,948.50 = 820,948.50 : x
2. Step 2: Convert to fraction form
   602,826/820,948.50 = 820,948.50/x
3. Step 3: Cross multiply
   602,826x = 820,948.50 × 820,948.50
4. Step 4: Simplify right side
   602,826x = 673,956,439,652.25
5. Step 5: Solve for x
   x = 673,956,439,652.25/602,826
6. Step 6: Final answer
   x = 1,117,994.98