Finding the Third Proportional to 456,007.50 and 989,898

Step by Step Solution

1. Step 1: Write the proportion equation
   456,007.50 : 989,898 = 989,898 : x
2. Step 2: Convert to fraction form
   456,007.50/989,898 = 989,898/x
3. Step 3: Cross multiply
   456,007.50x = 989,898 × 989,898
4. Step 4: Simplify right side
   456,007.50x = 979,898,050,404
5. Step 5: Solve for x
   x = 979,898,050,404/456,007.50
6. Step 6: Final answer
   x = 2,148,863.89