Finding the Third Proportional to 31,518,288 and 69,015,285

Step by Step Solution

1. Step 1: Write the proportion equation
   31,518,288 : 69,015,285 = 69,015,285 : x
2. Step 2: Convert to fraction form
   31,518,288/69,015,285 = 69,015,285/x
3. Step 3: Cross multiply
   31,518,288x = 69,015,285 × 69,015,285
4. Step 4: Simplify right side
   31,518,288x = 4,763,109,563,631,225
5. Step 5: Solve for x
   x = 4,763,109,563,631,225/31,518,288
6. Step 6: Final answer
   x = 151,122,090.25