Finding the Third Proportional to 553,716 and 791,815.50

Step by Step Solution

1. Step 1: Write the proportion equation
   553,716 : 791,815.50 = 791,815.50 : x
2. Step 2: Convert to fraction form
   553,716/791,815.50 = 791,815.50/x
3. Step 3: Cross multiply
   553,716x = 791,815.50 × 791,815.50
4. Step 4: Simplify right side
   553,716x = 626,971,786,040.25
5. Step 5: Solve for x
   x = 626,971,786,040.25/553,716
6. Step 6: Final answer
   x = 1,132,298.48