Finding the Third Proportional to 97,978.50 and 207,513

Step by Step Solution

1. Step 1: Write the proportion equation
   97,978.50 : 207,513 = 207,513 : x
2. Step 2: Convert to fraction form
   97,978.50/207,513 = 207,513/x
3. Step 3: Cross multiply
   97,978.50x = 207,513 × 207,513
4. Step 4: Simplify right side
   97,978.50x = 43,061,645,169
5. Step 5: Solve for x
   x = 43,061,645,169/97,978.50
6. Step 6: Final answer
   x = 439,500.96