Finding the Third Proportional to 111,811,419.91 and 245,803,043.56

Step by Step Solution

1. Step 1: Write the proportion equation
   111,811,419.91 : 245,803,043.56 = 245,803,043.56 : x
2. Step 2: Convert to fraction form
   111,811,419.91/245,803,043.56 = 245,803,043.56/x
3. Step 3: Cross multiply
   111,811,419.91x = 245,803,043.56 × 245,803,043.56
4. Step 4: Simplify right side
   111,811,419.91x = 60,419,136,224,347,384
5. Step 5: Solve for x
   x = 60,419,136,224,347,384/111,811,419.91
6. Step 6: Final answer
   x = 540,366,415.81