Finding the Third Proportional to 421,096.88 and 913,132.50

Step by Step Solution

1. Step 1: Write the proportion equation
   421,096.88 : 913,132.50 = 913,132.50 : x
2. Step 2: Convert to fraction form
   421,096.88/913,132.50 = 913,132.50/x
3. Step 3: Cross multiply
   421,096.88x = 913,132.50 × 913,132.50
4. Step 4: Simplify right side
   421,096.88x = 833,810,962,556.25
5. Step 5: Solve for x
   x = 833,810,962,556.25/421,096.88
6. Step 6: Final answer
   x = 1,980,092.97