Finding the Third Proportional to 245,730 and 539,641.50

Step by Step Solution

1. Step 1: Write the proportion equation
   245,730 : 539,641.50 = 539,641.50 : x
2. Step 2: Convert to fraction form
   245,730/539,641.50 = 539,641.50/x
3. Step 3: Cross multiply
   245,730x = 539,641.50 × 539,641.50
4. Step 4: Simplify right side
   245,730x = 291,212,948,522.25
5. Step 5: Solve for x
   x = 291,212,948,522.25/245,730
6. Step 6: Final answer
   x = 1,185,093.19