Finding the Third Proportional to 375,085.50 and 535,989

Step by Step Solution

1. Step 1: Write the proportion equation
   375,085.50 : 535,989 = 535,989 : x
2. Step 2: Convert to fraction form
   375,085.50/535,989 = 535,989/x
3. Step 3: Cross multiply
   375,085.50x = 535,989 × 535,989
4. Step 4: Simplify right side
   375,085.50x = 287,284,208,121
5. Step 5: Solve for x
   x = 287,284,208,121/375,085.50
6. Step 6: Final answer
   x = 765,916.59