Finding the Third Proportional to 69,918,609 and 105,848,968.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,918,609 : 105,848,968.50 = 105,848,968.50 : x
2. Step 2: Convert to fraction form
   69,918,609/105,848,968.50 = 105,848,968.50/x
3. Step 3: Cross multiply
   69,918,609x = 105,848,968.50 × 105,848,968.50
4. Step 4: Simplify right side
   69,918,609x = 11,204,004,132,513,992
5. Step 5: Solve for x
   x = 11,204,004,132,513,992/69,918,609
6. Step 6: Final answer
   x = 160,243,521.61