Finding the Third Proportional to 72,678,362.25 and 111,711,676.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,678,362.25 : 111,711,676.50 = 111,711,676.50 : x
2. Step 2: Convert to fraction form
   72,678,362.25/111,711,676.50 = 111,711,676.50/x
3. Step 3: Cross multiply
   72,678,362.25x = 111,711,676.50 × 111,711,676.50
4. Step 4: Simplify right side
   72,678,362.25x = 12,479,498,666,440,652
5. Step 5: Solve for x
   x = 12,479,498,666,440,652/72,678,362.25
6. Step 6: Final answer
   x = 171,708,583.96