Finding the Third Proportional to 143,150,745,438 and 311,434,488,999

Step by Step Solution

1. Step 1: Write the proportion equation
   143,150,745,438 : 311,434,488,999 = 311,434,488,999 : x
2. Step 2: Convert to fraction form
   143,150,745,438/311,434,488,999 = 311,434,488,999/x
3. Step 3: Cross multiply
   143,150,745,438x = 311,434,488,999 × 311,434,488,999
4. Step 4: Simplify right side
   143,150,745,438x = 96,991,440,938,068,248,363,008
5. Step 5: Solve for x
   x = 96,991,440,938,068,248,363,008/143,150,745,438
6. Step 6: Final answer
   x = 677,547,578,542.48