Finding the Third Proportional to 143,799,890 and 314,503,012

Step by Step Solution

1. Step 1: Write the proportion equation
   143,799,890 : 314,503,012 = 314,503,012 : x
2. Step 2: Convert to fraction form
   143,799,890/314,503,012 = 314,503,012/x
3. Step 3: Cross multiply
   143,799,890x = 314,503,012 × 314,503,012
4. Step 4: Simplify right side
   143,799,890x = 98,912,144,557,072,144
5. Step 5: Solve for x
   x = 98,912,144,557,072,144/143,799,890
6. Step 6: Final answer
   x = 687,845,759.53