Finding the Third Proportional to 71,776,607 and 111,355,608.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,776,607 : 111,355,608.50 = 111,355,608.50 : x
2. Step 2: Convert to fraction form
   71,776,607/111,355,608.50 = 111,355,608.50/x
3. Step 3: Cross multiply
   71,776,607x = 111,355,608.50 × 111,355,608.50
4. Step 4: Simplify right side
   71,776,607x = 12,400,071,544,405,272
5. Step 5: Solve for x
   x = 12,400,071,544,405,272/71,776,607
6. Step 6: Final answer
   x = 172,759,232.61