Finding the Third Proportional to 31,931,346 and 69,907,826

Step by Step Solution

1. Step 1: Write the proportion equation
   31,931,346 : 69,907,826 = 69,907,826 : x
2. Step 2: Convert to fraction form
   31,931,346/69,907,826 = 69,907,826/x
3. Step 3: Cross multiply
   31,931,346x = 69,907,826 × 69,907,826
4. Step 4: Simplify right side
   31,931,346x = 4,887,104,136,046,276
5. Step 5: Solve for x
   x = 4,887,104,136,046,276/31,931,346
6. Step 6: Final answer
   x = 153,050,364.24