Finding the Third Proportional to 715,408 and 1,516,108

Step by Step Solution

1. Step 1: Write the proportion equation
   715,408 : 1,516,108 = 1,516,108 : x
2. Step 2: Convert to fraction form
   715,408/1,516,108 = 1,516,108/x
3. Step 3: Cross multiply
   715,408x = 1,516,108 × 1,516,108
4. Step 4: Simplify right side
   715,408x = 2,298,583,467,664
5. Step 5: Solve for x
   x = 2,298,583,467,664/715,408
6. Step 6: Final answer
   x = 3,212,968.64