Finding the Third Proportional to 116,499.75 and 249,991.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,499.75 : 249,991.50 = 249,991.50 : x
2. Step 2: Convert to fraction form
   116,499.75/249,991.50 = 249,991.50/x
3. Step 3: Cross multiply
   116,499.75x = 249,991.50 × 249,991.50
4. Step 4: Simplify right side
   116,499.75x = 62,495,750,072.25
5. Step 5: Solve for x
   x = 62,495,750,072.25/116,499.75
6. Step 6: Final answer
   x = 536,445.36