Finding the Third Proportional to 526,725.28 and 815,109.33

Step by Step Solution

1. Step 1: Write the proportion equation
   526,725.28 : 815,109.33 = 815,109.33 : x
2. Step 2: Convert to fraction form
   526,725.28/815,109.33 = 815,109.33/x
3. Step 3: Cross multiply
   526,725.28x = 815,109.33 × 815,109.33
4. Step 4: Simplify right side
   526,725.28x = 664,403,216,796.39
5. Step 5: Solve for x
   x = 664,403,216,796.39/526,725.28
6. Step 6: Final answer
   x = 1,261,384.71