Finding the Third Proportional to 148,751,328 and 321,404,352

Step by Step Solution

1. Step 1: Write the proportion equation
   148,751,328 : 321,404,352 = 321,404,352 : x
2. Step 2: Convert to fraction form
   148,751,328/321,404,352 = 321,404,352/x
3. Step 3: Cross multiply
   148,751,328x = 321,404,352 × 321,404,352
4. Step 4: Simplify right side
   148,751,328x = 103,300,757,484,539,904
5. Step 5: Solve for x
   x = 103,300,757,484,539,904/148,751,328
6. Step 6: Final answer
   x = 694,452,673.96