Finding the Third Proportional to 31,931,340 and 69,907,814

Step by Step Solution

1. Step 1: Write the proportion equation
   31,931,340 : 69,907,814 = 69,907,814 : x
2. Step 2: Convert to fraction form
   31,931,340/69,907,814 = 69,907,814/x
3. Step 3: Cross multiply
   31,931,340x = 69,907,814 × 69,907,814
4. Step 4: Simplify right side
   31,931,340x = 4,887,102,458,258,596
5. Step 5: Solve for x
   x = 4,887,102,458,258,596/31,931,340
6. Step 6: Final answer
   x = 153,050,340.46