Finding the Third Proportional to 590,157 and 911,275.50

Step by Step Solution

1. Step 1: Write the proportion equation
   590,157 : 911,275.50 = 911,275.50 : x
2. Step 2: Convert to fraction form
   590,157/911,275.50 = 911,275.50/x
3. Step 3: Cross multiply
   590,157x = 911,275.50 × 911,275.50
4. Step 4: Simplify right side
   590,157x = 830,423,036,900.25
5. Step 5: Solve for x
   x = 830,423,036,900.25/590,157
6. Step 6: Final answer
   x = 1,407,122.24