Finding the Third Proportional to 987,891,412.50 and 2,147,963,148

Step by Step Solution

1. Step 1: Write the proportion equation
   987,891,412.50 : 2,147,963,148 = 2,147,963,148 : x
2. Step 2: Convert to fraction form
   987,891,412.50/2,147,963,148 = 2,147,963,148/x
3. Step 3: Cross multiply
   987,891,412.50x = 2,147,963,148 × 2,147,963,148
4. Step 4: Simplify right side
   987,891,412.50x = 4,613,745,685,166,069,760
5. Step 5: Solve for x
   x = 4,613,745,685,166,069,760/987,891,412.50
6. Step 6: Final answer
   x = 4,670,296,377.50