Finding the Third Proportional to 143,047,628 and 308,963,620

Step by Step Solution

1. Step 1: Write the proportion equation
   143,047,628 : 308,963,620 = 308,963,620 : x
2. Step 2: Convert to fraction form
   143,047,628/308,963,620 = 308,963,620/x
3. Step 3: Cross multiply
   143,047,628x = 308,963,620 × 308,963,620
4. Step 4: Simplify right side
   143,047,628x = 95,458,518,483,504,400
5. Step 5: Solve for x
   x = 95,458,518,483,504,400/143,047,628
6. Step 6: Final answer
   x = 667,319,827.80