Finding the Third Proportional to 67,451,212 and 145,132,640

Step by Step Solution

1. Step 1: Write the proportion equation
   67,451,212 : 145,132,640 = 145,132,640 : x
2. Step 2: Convert to fraction form
   67,451,212/145,132,640 = 145,132,640/x
3. Step 3: Cross multiply
   67,451,212x = 145,132,640 × 145,132,640
4. Step 4: Simplify right side
   67,451,212x = 21,063,483,193,369,600
5. Step 5: Solve for x
   x = 21,063,483,193,369,600/67,451,212
6. Step 6: Final answer
   x = 312,277,312.28