Finding the Third Proportional to 620,313 and 948,718.50

Step by Step Solution

1. Step 1: Write the proportion equation
   620,313 : 948,718.50 = 948,718.50 : x
2. Step 2: Convert to fraction form
   620,313/948,718.50 = 948,718.50/x
3. Step 3: Cross multiply
   620,313x = 948,718.50 × 948,718.50
4. Step 4: Simplify right side
   620,313x = 900,066,792,242.25
5. Step 5: Solve for x
   x = 900,066,792,242.25/620,313
6. Step 6: Final answer
   x = 1,450,988.12