Finding the Third Proportional to 478,588.50 and 750,870

Step by Step Solution

1. Step 1: Write the proportion equation
   478,588.50 : 750,870 = 750,870 : x
2. Step 2: Convert to fraction form
   478,588.50/750,870 = 750,870/x
3. Step 3: Cross multiply
   478,588.50x = 750,870 × 750,870
4. Step 4: Simplify right side
   478,588.50x = 563,805,756,900
5. Step 5: Solve for x
   x = 563,805,756,900/478,588.50
6. Step 6: Final answer
   x = 1,178,059.56