Finding the Third Proportional to 132,667,971 and 287,066,946

Step by Step Solution

1. Step 1: Write the proportion equation
   132,667,971 : 287,066,946 = 287,066,946 : x
2. Step 2: Convert to fraction form
   132,667,971/287,066,946 = 287,066,946/x
3. Step 3: Cross multiply
   132,667,971x = 287,066,946 × 287,066,946
4. Step 4: Simplify right side
   132,667,971x = 82,407,431,485,766,912
5. Step 5: Solve for x
   x = 82,407,431,485,766,912/132,667,971
6. Step 6: Final answer
   x = 621,155,436.87