Finding the Third Proportional to 1,200,732 and 1,688,778

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,732 : 1,688,778 = 1,688,778 : x
2. Step 2: Convert to fraction form
   1,200,732/1,688,778 = 1,688,778/x
3. Step 3: Cross multiply
   1,200,732x = 1,688,778 × 1,688,778
4. Step 4: Simplify right side
   1,200,732x = 2,851,971,133,284
5. Step 5: Solve for x
   x = 2,851,971,133,284/1,200,732
6. Step 6: Final answer
   x = 2,375,193.74