Finding the Third Proportional to 31,407,618 and 69,015,034.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,407,618 : 69,015,034.50 = 69,015,034.50 : x
2. Step 2: Convert to fraction form
   31,407,618/69,015,034.50 = 69,015,034.50/x
3. Step 3: Cross multiply
   31,407,618x = 69,015,034.50 × 69,015,034.50
4. Step 4: Simplify right side
   31,407,618x = 4,763,074,987,036,190
5. Step 5: Solve for x
   x = 4,763,074,987,036,190/31,407,618
6. Step 6: Final answer
   x = 151,653,493.34