Finding the Third Proportional to 219,499,596.56 and 323,185,646.25

Step by Step Solution

1. Step 1: Write the proportion equation
   219,499,596.56 : 323,185,646.25 = 323,185,646.25 : x
2. Step 2: Convert to fraction form
   219,499,596.56/323,185,646.25 = 323,185,646.25/x
3. Step 3: Cross multiply
   219,499,596.56x = 323,185,646.25 × 323,185,646.25
4. Step 4: Simplify right side
   219,499,596.56x = 104,448,961,942,030,144
5. Step 5: Solve for x
   x = 104,448,961,942,030,144/219,499,596.56
6. Step 6: Final answer
   x = 475,850,359.53