Finding the Third Proportional to 590,458 and 939,988.50

Step by Step Solution

1. Step 1: Write the proportion equation
   590,458 : 939,988.50 = 939,988.50 : x
2. Step 2: Convert to fraction form
   590,458/939,988.50 = 939,988.50/x
3. Step 3: Cross multiply
   590,458x = 939,988.50 × 939,988.50
4. Step 4: Simplify right side
   590,458x = 883,578,380,132.25
5. Step 5: Solve for x
   x = 883,578,380,132.25/590,458
6. Step 6: Final answer
   x = 1,496,428.84