Finding the Third Proportional to 57,424,560 and 86,178,834

Step by Step Solution

1. Step 1: Write the proportion equation
   57,424,560 : 86,178,834 = 86,178,834 : x
2. Step 2: Convert to fraction form
   57,424,560/86,178,834 = 86,178,834/x
3. Step 3: Cross multiply
   57,424,560x = 86,178,834 × 86,178,834
4. Step 4: Simplify right side
   57,424,560x = 7,426,791,429,599,556
5. Step 5: Solve for x
   x = 7,426,791,429,599,556/57,424,560
6. Step 6: Final answer
   x = 129,331,272.71