Finding the Third Proportional to 66,111,608 and 142,846,204

Step by Step Solution

1. Step 1: Write the proportion equation
   66,111,608 : 142,846,204 = 142,846,204 : x
2. Step 2: Convert to fraction form
   66,111,608/142,846,204 = 142,846,204/x
3. Step 3: Cross multiply
   66,111,608x = 142,846,204 × 142,846,204
4. Step 4: Simplify right side
   66,111,608x = 20,405,037,997,209,616
5. Step 5: Solve for x
   x = 20,405,037,997,209,616/66,111,608
6. Step 6: Final answer
   x = 308,645,313.80