Finding the Third Proportional to 671,773.50 and 987,835.50

Step by Step Solution

1. Step 1: Write the proportion equation
   671,773.50 : 987,835.50 = 987,835.50 : x
2. Step 2: Convert to fraction form
   671,773.50/987,835.50 = 987,835.50/x
3. Step 3: Cross multiply
   671,773.50x = 987,835.50 × 987,835.50
4. Step 4: Simplify right side
   671,773.50x = 975,818,975,060.25
5. Step 5: Solve for x
   x = 975,818,975,060.25/671,773.50
6. Step 6: Final answer
   x = 1,452,601.17