Finding the Third Proportional to 526,347 and 816,493.50

Step by Step Solution

1. Step 1: Write the proportion equation
   526,347 : 816,493.50 = 816,493.50 : x
2. Step 2: Convert to fraction form
   526,347/816,493.50 = 816,493.50/x
3. Step 3: Cross multiply
   526,347x = 816,493.50 × 816,493.50
4. Step 4: Simplify right side
   526,347x = 666,661,635,542.25
5. Step 5: Solve for x
   x = 666,661,635,542.25/526,347
6. Step 6: Final answer
   x = 1,266,582.00