Finding the Third Proportional to 921,861.50 and 1,446,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   921,861.50 : 1,446,128.50 = 1,446,128.50 : x
2. Step 2: Convert to fraction form
   921,861.50/1,446,128.50 = 1,446,128.50/x
3. Step 3: Cross multiply
   921,861.50x = 1,446,128.50 × 1,446,128.50
4. Step 4: Simplify right side
   921,861.50x = 2,091,287,638,512.25
5. Step 5: Solve for x
   x = 2,091,287,638,512.25/921,861.50
6. Step 6: Final answer
   x = 2,268,548.63