Finding the Third Proportional to 64,985,906 and 142,727,116

Step by Step Solution

1. Step 1: Write the proportion equation
   64,985,906 : 142,727,116 = 142,727,116 : x
2. Step 2: Convert to fraction form
   64,985,906/142,727,116 = 142,727,116/x
3. Step 3: Cross multiply
   64,985,906x = 142,727,116 × 142,727,116
4. Step 4: Simplify right side
   64,985,906x = 20,371,029,641,677,456
5. Step 5: Solve for x
   x = 20,371,029,641,677,456/64,985,906
6. Step 6: Final answer
   x = 313,468,425.63