Finding the Third Proportional to 98,340 and 215,632.50

Step by Step Solution

1. Step 1: Write the proportion equation
   98,340 : 215,632.50 = 215,632.50 : x
2. Step 2: Convert to fraction form
   98,340/215,632.50 = 215,632.50/x
3. Step 3: Cross multiply
   98,340x = 215,632.50 × 215,632.50
4. Step 4: Simplify right side
   98,340x = 46,497,375,056.25
5. Step 5: Solve for x
   x = 46,497,375,056.25/98,340
6. Step 6: Final answer
   x = 472,822.61