Finding the Third Proportional to 31,684,616 and 67,916,612

Step by Step Solution

1. Step 1: Write the proportion equation
   31,684,616 : 67,916,612 = 67,916,612 : x
2. Step 2: Convert to fraction form
   31,684,616/67,916,612 = 67,916,612/x
3. Step 3: Cross multiply
   31,684,616x = 67,916,612 × 67,916,612
4. Step 4: Simplify right side
   31,684,616x = 4,612,666,185,558,544
5. Step 5: Solve for x
   x = 4,612,666,185,558,544/31,684,616
6. Step 6: Final answer
   x = 145,580,624.54