Finding the Third Proportional to 535,278.38 and 788,131.69

Step by Step Solution

1. Step 1: Write the proportion equation
   535,278.38 : 788,131.69 = 788,131.69 : x
2. Step 2: Convert to fraction form
   535,278.38/788,131.69 = 788,131.69/x
3. Step 3: Cross multiply
   535,278.38x = 788,131.69 × 788,131.69
4. Step 4: Simplify right side
   535,278.38x = 621,151,556,841.60
5. Step 5: Solve for x
   x = 621,151,556,841.60/535,278.38
6. Step 6: Final answer
   x = 1,160,427.15