Finding the Third Proportional to 985,000.50 and 2,123,820

Step by Step Solution

1. Step 1: Write the proportion equation
   985,000.50 : 2,123,820 = 2,123,820 : x
2. Step 2: Convert to fraction form
   985,000.50/2,123,820 = 2,123,820/x
3. Step 3: Cross multiply
   985,000.50x = 2,123,820 × 2,123,820
4. Step 4: Simplify right side
   985,000.50x = 4,510,611,392,400
5. Step 5: Solve for x
   x = 4,510,611,392,400/985,000.50
6. Step 6: Final answer
   x = 4,579,298.58