Finding the Third Proportional to 591,196.50 and 917,158.50

Step by Step Solution

1. Step 1: Write the proportion equation
   591,196.50 : 917,158.50 = 917,158.50 : x
2. Step 2: Convert to fraction form
   591,196.50/917,158.50 = 917,158.50/x
3. Step 3: Cross multiply
   591,196.50x = 917,158.50 × 917,158.50
4. Step 4: Simplify right side
   591,196.50x = 841,179,714,122.25
5. Step 5: Solve for x
   x = 841,179,714,122.25/591,196.50
6. Step 6: Final answer
   x = 1,422,842.85