Finding the Third Proportional to 556,335 and 860,746.50

Step by Step Solution

1. Step 1: Write the proportion equation
   556,335 : 860,746.50 = 860,746.50 : x
2. Step 2: Convert to fraction form
   556,335/860,746.50 = 860,746.50/x
3. Step 3: Cross multiply
   556,335x = 860,746.50 × 860,746.50
4. Step 4: Simplify right side
   556,335x = 740,884,537,262.25
5. Step 5: Solve for x
   x = 740,884,537,262.25/556,335
6. Step 6: Final answer
   x = 1,331,723.76