Finding the Third Proportional to 143,552,912 and 314,897,978

Step by Step Solution

1. Step 1: Write the proportion equation
   143,552,912 : 314,897,978 = 314,897,978 : x
2. Step 2: Convert to fraction form
   143,552,912/314,897,978 = 314,897,978/x
3. Step 3: Cross multiply
   143,552,912x = 314,897,978 × 314,897,978
4. Step 4: Simplify right side
   143,552,912x = 99,160,736,548,488,480
5. Step 5: Solve for x
   x = 99,160,736,548,488,480/143,552,912
6. Step 6: Final answer
   x = 690,760,885.08