Finding the Third Proportional to 663,858,205 and 1,447,859,238.50

Step by Step Solution

1. Step 1: Write the proportion equation
   663,858,205 : 1,447,859,238.50 = 1,447,859,238.50 : x
2. Step 2: Convert to fraction form
   663,858,205/1,447,859,238.50 = 1,447,859,238.50/x
3. Step 3: Cross multiply
   663,858,205x = 1,447,859,238.50 × 1,447,859,238.50
4. Step 4: Simplify right side
   663,858,205x = 2,096,296,374,509,799,936
5. Step 5: Solve for x
   x = 2,096,296,374,509,799,936/663,858,205
6. Step 6: Final answer
   x = 3,157,747,179.63