Finding the Third Proportional to 31,581,426 and 69,106,380

Step by Step Solution

1. Step 1: Write the proportion equation
   31,581,426 : 69,106,380 = 69,106,380 : x
2. Step 2: Convert to fraction form
   31,581,426/69,106,380 = 69,106,380/x
3. Step 3: Cross multiply
   31,581,426x = 69,106,380 × 69,106,380
4. Step 4: Simplify right side
   31,581,426x = 4,775,691,756,704,400
5. Step 5: Solve for x
   x = 4,775,691,756,704,400/31,581,426
6. Step 6: Final answer
   x = 151,218,369.83