Finding the Third Proportional to 642,051.75 and 995,538

Step by Step Solution

1. Step 1: Write the proportion equation
   642,051.75 : 995,538 = 995,538 : x
2. Step 2: Convert to fraction form
   642,051.75/995,538 = 995,538/x
3. Step 3: Cross multiply
   642,051.75x = 995,538 × 995,538
4. Step 4: Simplify right side
   642,051.75x = 991,095,909,444
5. Step 5: Solve for x
   x = 991,095,909,444/642,051.75
6. Step 6: Final answer
   x = 1,543,638.67