Finding the Third Proportional to 765,509 and 1,788,005

Step by Step Solution

1. Step 1: Write the proportion equation
   765,509 : 1,788,005 = 1,788,005 : x
2. Step 2: Convert to fraction form
   765,509/1,788,005 = 1,788,005/x
3. Step 3: Cross multiply
   765,509x = 1,788,005 × 1,788,005
4. Step 4: Simplify right side
   765,509x = 3,196,961,880,025
5. Step 5: Solve for x
   x = 3,196,961,880,025/765,509
6. Step 6: Final answer
   x = 4,176,256.43