Finding the Third Proportional to 31,296,666 and 67,221,020

Step by Step Solution

1. Step 1: Write the proportion equation
   31,296,666 : 67,221,020 = 67,221,020 : x
2. Step 2: Convert to fraction form
   31,296,666/67,221,020 = 67,221,020/x
3. Step 3: Cross multiply
   31,296,666x = 67,221,020 × 67,221,020
4. Step 4: Simplify right side
   31,296,666x = 4,518,665,529,840,400
5. Step 5: Solve for x
   x = 4,518,665,529,840,400/31,296,666
6. Step 6: Final answer
   x = 144,381,690.04