Finding the Third Proportional to 591,187.50 and 917,145

Step by Step Solution

1. Step 1: Write the proportion equation
   591,187.50 : 917,145 = 917,145 : x
2. Step 2: Convert to fraction form
   591,187.50/917,145 = 917,145/x
3. Step 3: Cross multiply
   591,187.50x = 917,145 × 917,145
4. Step 4: Simplify right side
   591,187.50x = 841,154,951,025
5. Step 5: Solve for x
   x = 841,154,951,025/591,187.50
6. Step 6: Final answer
   x = 1,422,822.63