Finding the Third Proportional to 31,931,344 and 69,907,822

Step by Step Solution

1. Step 1: Write the proportion equation
   31,931,344 : 69,907,822 = 69,907,822 : x
2. Step 2: Convert to fraction form
   31,931,344/69,907,822 = 69,907,822/x
3. Step 3: Cross multiply
   31,931,344x = 69,907,822 × 69,907,822
4. Step 4: Simplify right side
   31,931,344x = 4,887,103,576,783,684
5. Step 5: Solve for x
   x = 4,887,103,576,783,684/31,931,344
6. Step 6: Final answer
   x = 153,050,356.31