Finding the Third Proportional to 12,385,533 and 25,900,378.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,385,533 : 25,900,378.50 = 25,900,378.50 : x
2. Step 2: Convert to fraction form
   12,385,533/25,900,378.50 = 25,900,378.50/x
3. Step 3: Cross multiply
   12,385,533x = 25,900,378.50 × 25,900,378.50
4. Step 4: Simplify right side
   12,385,533x = 670,829,606,443,262.25
5. Step 5: Solve for x
   x = 670,829,606,443,262.25/12,385,533
6. Step 6: Final answer
   x = 54,162,352.68