Finding the Third Proportional to 876,643.50 and 1,187,956.50

Step by Step Solution

1. Step 1: Write the proportion equation
   876,643.50 : 1,187,956.50 = 1,187,956.50 : x
2. Step 2: Convert to fraction form
   876,643.50/1,187,956.50 = 1,187,956.50/x
3. Step 3: Cross multiply
   876,643.50x = 1,187,956.50 × 1,187,956.50
4. Step 4: Simplify right side
   876,643.50x = 1,411,240,645,892.25
5. Step 5: Solve for x
   x = 1,411,240,645,892.25/876,643.50
6. Step 6: Final answer
   x = 1,609,822.75