Finding the Third Proportional to 577,881 and 860,701.50

Step by Step Solution

1. Step 1: Write the proportion equation
   577,881 : 860,701.50 = 860,701.50 : x
2. Step 2: Convert to fraction form
   577,881/860,701.50 = 860,701.50/x
3. Step 3: Cross multiply
   577,881x = 860,701.50 × 860,701.50
4. Step 4: Simplify right side
   577,881x = 740,807,072,102.25
5. Step 5: Solve for x
   x = 740,807,072,102.25/577,881
6. Step 6: Final answer
   x = 1,281,937.06