Finding the Third Proportional to 31,931,322 and 69,907,782

Step by Step Solution

1. Step 1: Write the proportion equation
   31,931,322 : 69,907,782 = 69,907,782 : x
2. Step 2: Convert to fraction form
   31,931,322/69,907,782 = 69,907,782/x
3. Step 3: Cross multiply
   31,931,322x = 69,907,782 × 69,907,782
4. Step 4: Simplify right side
   31,931,322x = 4,887,097,984,159,524
5. Step 5: Solve for x
   x = 4,887,097,984,159,524/31,931,322
6. Step 6: Final answer
   x = 153,050,286.62