Finding the Third Proportional to 12,515,973.19 and 25,991,173.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,515,973.19 : 25,991,173.69 = 25,991,173.69 : x
2. Step 2: Convert to fraction form
   12,515,973.19/25,991,173.69 = 25,991,173.69/x
3. Step 3: Cross multiply
   12,515,973.19x = 25,991,173.69 × 25,991,173.69
4. Step 4: Simplify right side
   12,515,973.19x = 675,541,109,653,792.38
5. Step 5: Solve for x
   x = 675,541,109,653,792.38/12,515,973.19
6. Step 6: Final answer
   x = 53,974,317.42