Finding the Third Proportional to 747,972 and 1,636,155

Step by Step Solution

1. Step 1: Write the proportion equation
   747,972 : 1,636,155 = 1,636,155 : x
2. Step 2: Convert to fraction form
   747,972/1,636,155 = 1,636,155/x
3. Step 3: Cross multiply
   747,972x = 1,636,155 × 1,636,155
4. Step 4: Simplify right side
   747,972x = 2,677,003,184,025
5. Step 5: Solve for x
   x = 2,677,003,184,025/747,972
6. Step 6: Final answer
   x = 3,579,015.24