Finding the Third Proportional to 146,614,119 and 215,128,326

Step by Step Solution

1. Step 1: Write the proportion equation
   146,614,119 : 215,128,326 = 215,128,326 : x
2. Step 2: Convert to fraction form
   146,614,119/215,128,326 = 215,128,326/x
3. Step 3: Cross multiply
   146,614,119x = 215,128,326 × 215,128,326
4. Step 4: Simplify right side
   146,614,119x = 46,280,196,647,562,272
5. Step 5: Solve for x
   x = 46,280,196,647,562,272/146,614,119
6. Step 6: Final answer
   x = 315,659,889.81