Finding the Third Proportional to 636,369 and 891,985.50

Step by Step Solution

1. Step 1: Write the proportion equation
   636,369 : 891,985.50 = 891,985.50 : x
2. Step 2: Convert to fraction form
   636,369/891,985.50 = 891,985.50/x
3. Step 3: Cross multiply
   636,369x = 891,985.50 × 891,985.50
4. Step 4: Simplify right side
   636,369x = 795,638,132,210.25
5. Step 5: Solve for x
   x = 795,638,132,210.25/636,369
6. Step 6: Final answer
   x = 1,250,277.96