Finding the Third Proportional to 6,191,984 and 9,105,978

Step by Step Solution

1. Step 1: Write the proportion equation
   6,191,984 : 9,105,978 = 9,105,978 : x
2. Step 2: Convert to fraction form
   6,191,984/9,105,978 = 9,105,978/x
3. Step 3: Cross multiply
   6,191,984x = 9,105,978 × 9,105,978
4. Step 4: Simplify right side
   6,191,984x = 82,918,835,336,484
5. Step 5: Solve for x
   x = 82,918,835,336,484/6,191,984
6. Step 6: Final answer
   x = 13,391,319.38