Finding the Third Proportional to 689,575 and 1,035,305

Step by Step Solution

1. Step 1: Write the proportion equation
   689,575 : 1,035,305 = 1,035,305 : x
2. Step 2: Convert to fraction form
   689,575/1,035,305 = 1,035,305/x
3. Step 3: Cross multiply
   689,575x = 1,035,305 × 1,035,305
4. Step 4: Simplify right side
   689,575x = 1,071,856,443,025
5. Step 5: Solve for x
   x = 1,071,856,443,025/689,575
6. Step 6: Final answer
   x = 1,554,372.54