Finding the Third Proportional to 786,645 and 1,716,138

Step by Step Solution

1. Step 1: Write the proportion equation
   786,645 : 1,716,138 = 1,716,138 : x
2. Step 2: Convert to fraction form
   786,645/1,716,138 = 1,716,138/x
3. Step 3: Cross multiply
   786,645x = 1,716,138 × 1,716,138
4. Step 4: Simplify right side
   786,645x = 2,945,129,635,044
5. Step 5: Solve for x
   x = 2,945,129,635,044/786,645
6. Step 6: Final answer
   x = 3,743,911.97