Finding the Third Proportional to 248,574,330 and 373,899,300

Step by Step Solution

1. Step 1: Write the proportion equation
   248,574,330 : 373,899,300 = 373,899,300 : x
2. Step 2: Convert to fraction form
   248,574,330/373,899,300 = 373,899,300/x
3. Step 3: Cross multiply
   248,574,330x = 373,899,300 × 373,899,300
4. Step 4: Simplify right side
   248,574,330x = 139,800,686,540,490,000
5. Step 5: Solve for x
   x = 139,800,686,540,490,000/248,574,330
6. Step 6: Final answer
   x = 562,409,990.37