Finding the Third Proportional to 1,921,680 and 2,824,687.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921,680 : 2,824,687.50 = 2,824,687.50 : x
2. Step 2: Convert to fraction form
   1,921,680/2,824,687.50 = 2,824,687.50/x
3. Step 3: Cross multiply
   1,921,680x = 2,824,687.50 × 2,824,687.50
4. Step 4: Simplify right side
   1,921,680x = 7,978,859,472,656.25
5. Step 5: Solve for x
   x = 7,978,859,472,656.25/1,921,680
6. Step 6: Final answer
   x = 4,152,022.96