Finding the Third Proportional to 904,131 and 1,989,045

Step by Step Solution

1. Step 1: Write the proportion equation
   904,131 : 1,989,045 = 1,989,045 : x
2. Step 2: Convert to fraction form
   904,131/1,989,045 = 1,989,045/x
3. Step 3: Cross multiply
   904,131x = 1,989,045 × 1,989,045
4. Step 4: Simplify right side
   904,131x = 3,956,300,012,025
5. Step 5: Solve for x
   x = 3,956,300,012,025/904,131
6. Step 6: Final answer
   x = 4,375,803.96