Finding the Third Proportional to 288,381,123 and 446,820,880.50

Step by Step Solution

1. Step 1: Write the proportion equation
   288,381,123 : 446,820,880.50 = 446,820,880.50 : x
2. Step 2: Convert to fraction form
   288,381,123/446,820,880.50 = 446,820,880.50/x
3. Step 3: Cross multiply
   288,381,123x = 446,820,880.50 × 446,820,880.50
4. Step 4: Simplify right side
   288,381,123x = 199,648,899,250,795,296
5. Step 5: Solve for x
   x = 199,648,899,250,795,296/288,381,123
6. Step 6: Final answer
   x = 692,309,181.59