Finding the Third Proportional to 298,988 and 463,426.50

Step by Step Solution

1. Step 1: Write the proportion equation
   298,988 : 463,426.50 = 463,426.50 : x
2. Step 2: Convert to fraction form
   298,988/463,426.50 = 463,426.50/x
3. Step 3: Cross multiply
   298,988x = 463,426.50 × 463,426.50
4. Step 4: Simplify right side
   298,988x = 214,764,120,902.25
5. Step 5: Solve for x
   x = 214,764,120,902.25/298,988
6. Step 6: Final answer
   x = 718,303.48