Finding the Third Proportional to 64,607,664 and 141,768,570

Step by Step Solution

1. Step 1: Write the proportion equation
   64,607,664 : 141,768,570 = 141,768,570 : x
2. Step 2: Convert to fraction form
   64,607,664/141,768,570 = 141,768,570/x
3. Step 3: Cross multiply
   64,607,664x = 141,768,570 × 141,768,570
4. Step 4: Simplify right side
   64,607,664x = 20,098,327,439,844,900
5. Step 5: Solve for x
   x = 20,098,327,439,844,900/64,607,664
6. Step 6: Final answer
   x = 311,082,713.65