Finding the Third Proportional to 653,130.75 and 989,538

Step by Step Solution

1. Step 1: Write the proportion equation
   653,130.75 : 989,538 = 989,538 : x
2. Step 2: Convert to fraction form
   653,130.75/989,538 = 989,538/x
3. Step 3: Cross multiply
   653,130.75x = 989,538 × 989,538
4. Step 4: Simplify right side
   653,130.75x = 979,185,453,444
5. Step 5: Solve for x
   x = 979,185,453,444/653,130.75
6. Step 6: Final answer
   x = 1,499,218.12