Finding the Third Proportional to 66,111,614 and 142,846,216

Step by Step Solution

1. Step 1: Write the proportion equation
   66,111,614 : 142,846,216 = 142,846,216 : x
2. Step 2: Convert to fraction form
   66,111,614/142,846,216 = 142,846,216/x
3. Step 3: Cross multiply
   66,111,614x = 142,846,216 × 142,846,216
4. Step 4: Simplify right side
   66,111,614x = 20,405,041,425,518,656
5. Step 5: Solve for x
   x = 20,405,041,425,518,656/66,111,614
6. Step 6: Final answer
   x = 308,645,337.65