Finding the Third Proportional to 917,281.50 and 2,158,307.25

Step by Step Solution

1. Step 1: Write the proportion equation
   917,281.50 : 2,158,307.25 = 2,158,307.25 : x
2. Step 2: Convert to fraction form
   917,281.50/2,158,307.25 = 2,158,307.25/x
3. Step 3: Cross multiply
   917,281.50x = 2,158,307.25 × 2,158,307.25
4. Step 4: Simplify right side
   917,281.50x = 4,658,290,185,402.56
5. Step 5: Solve for x
   x = 4,658,290,185,402.56/917,281.50
6. Step 6: Final answer
   x = 5,078,364.91