Finding the Third Proportional to 65,643,048 and 142,845,120

Step by Step Solution

1. Step 1: Write the proportion equation
   65,643,048 : 142,845,120 = 142,845,120 : x
2. Step 2: Convert to fraction form
   65,643,048/142,845,120 = 142,845,120/x
3. Step 3: Cross multiply
   65,643,048x = 142,845,120 × 142,845,120
4. Step 4: Simplify right side
   65,643,048x = 20,404,728,307,814,400
5. Step 5: Solve for x
   x = 20,404,728,307,814,400/65,643,048
6. Step 6: Final answer
   x = 310,843,705.91