Finding the Third Proportional to 191,987.50 and 426,587

Step by Step Solution

1. Step 1: Write the proportion equation
   191,987.50 : 426,587 = 426,587 : x
2. Step 2: Convert to fraction form
   191,987.50/426,587 = 426,587/x
3. Step 3: Cross multiply
   191,987.50x = 426,587 × 426,587
4. Step 4: Simplify right side
   191,987.50x = 181,976,468,569
5. Step 5: Solve for x
   x = 181,976,468,569/191,987.50
6. Step 6: Final answer
   x = 947,855.82