Finding the Third Proportional to 128,250,221.25 and 269,097,562.50

Step by Step Solution

1. Step 1: Write the proportion equation
   128,250,221.25 : 269,097,562.50 = 269,097,562.50 : x
2. Step 2: Convert to fraction form
   128,250,221.25/269,097,562.50 = 269,097,562.50/x
3. Step 3: Cross multiply
   128,250,221.25x = 269,097,562.50 × 269,097,562.50
4. Step 4: Simplify right side
   128,250,221.25x = 72,413,498,143,441,408
5. Step 5: Solve for x
   x = 72,413,498,143,441,408/128,250,221.25
6. Step 6: Final answer
   x = 564,626,691.77