Finding the Third Proportional to 740,623.50 and 990,981

Step by Step Solution

1. Step 1: Write the proportion equation
   740,623.50 : 990,981 = 990,981 : x
2. Step 2: Convert to fraction form
   740,623.50/990,981 = 990,981/x
3. Step 3: Cross multiply
   740,623.50x = 990,981 × 990,981
4. Step 4: Simplify right side
   740,623.50x = 982,043,342,361
5. Step 5: Solve for x
   x = 982,043,342,361/740,623.50
6. Step 6: Final answer
   x = 1,325,968.38