Finding the Third Proportional to 146,139,697.50 and 318,005,872.50

Step by Step Solution

1. Step 1: Write the proportion equation
   146,139,697.50 : 318,005,872.50 = 318,005,872.50 : x
2. Step 2: Convert to fraction form
   146,139,697.50/318,005,872.50 = 318,005,872.50/x
3. Step 3: Cross multiply
   146,139,697.50x = 318,005,872.50 × 318,005,872.50
4. Step 4: Simplify right side
   146,139,697.50x = 101,127,734,944,486,256
5. Step 5: Solve for x
   x = 101,127,734,944,486,256/146,139,697.50
6. Step 6: Final answer
   x = 691,993,597.05