Finding the Third Proportional to 591,196 and 917,155.50

Step by Step Solution

1. Step 1: Write the proportion equation
   591,196 : 917,155.50 = 917,155.50 : x
2. Step 2: Convert to fraction form
   591,196/917,155.50 = 917,155.50/x
3. Step 3: Cross multiply
   591,196x = 917,155.50 × 917,155.50
4. Step 4: Simplify right side
   591,196x = 841,174,211,180.25
5. Step 5: Solve for x
   x = 841,174,211,180.25/591,196
6. Step 6: Final answer
   x = 1,422,834.75