Finding the Third Proportional to 117,510 and 249,090.75

Step by Step Solution

1. Step 1: Write the proportion equation
   117,510 : 249,090.75 = 249,090.75 : x
2. Step 2: Convert to fraction form
   117,510/249,090.75 = 249,090.75/x
3. Step 3: Cross multiply
   117,510x = 249,090.75 × 249,090.75
4. Step 4: Simplify right side
   117,510x = 62,046,201,735.56
5. Step 5: Solve for x
   x = 62,046,201,735.56/117,510
6. Step 6: Final answer
   x = 528,007.84