Finding the Third Proportional to 588,645 and 911,263.50

Step by Step Solution

1. Step 1: Write the proportion equation
   588,645 : 911,263.50 = 911,263.50 : x
2. Step 2: Convert to fraction form
   588,645/911,263.50 = 911,263.50/x
3. Step 3: Cross multiply
   588,645x = 911,263.50 × 911,263.50
4. Step 4: Simplify right side
   588,645x = 830,401,166,432.25
5. Step 5: Solve for x
   x = 830,401,166,432.25/588,645
6. Step 6: Final answer
   x = 1,410,699.43