Finding the Third Proportional to 65,419,758 and 142,722,297

Step by Step Solution

1. Step 1: Write the proportion equation
   65,419,758 : 142,722,297 = 142,722,297 : x
2. Step 2: Convert to fraction form
   65,419,758/142,722,297 = 142,722,297/x
3. Step 3: Cross multiply
   65,419,758x = 142,722,297 × 142,722,297
4. Step 4: Simplify right side
   65,419,758x = 20,369,654,060,956,208
5. Step 5: Solve for x
   x = 20,369,654,060,956,208/65,419,758
6. Step 6: Final answer
   x = 311,368,532.74