Finding the Third Proportional to 64,634.06 and 139,646.25

Step by Step Solution

1. Step 1: Write the proportion equation
   64,634.06 : 139,646.25 = 139,646.25 : x
2. Step 2: Convert to fraction form
   64,634.06/139,646.25 = 139,646.25/x
3. Step 3: Cross multiply
   64,634.06x = 139,646.25 × 139,646.25
4. Step 4: Simplify right side
   64,634.06x = 19,501,075,139.06
5. Step 5: Solve for x
   x = 19,501,075,139.06/64,634.06
6. Step 6: Final answer
   x = 301,715.14