Finding the Third Proportional to 31,987,852 and 69,072,766

Step by Step Solution

1. Step 1: Write the proportion equation
   31,987,852 : 69,072,766 = 69,072,766 : x
2. Step 2: Convert to fraction form
   31,987,852/69,072,766 = 69,072,766/x
3. Step 3: Cross multiply
   31,987,852x = 69,072,766 × 69,072,766
4. Step 4: Simplify right side
   31,987,852x = 4,771,047,002,890,756
5. Step 5: Solve for x
   x = 4,771,047,002,890,756/31,987,852
6. Step 6: Final answer
   x = 149,151,840.61