Finding the Third Proportional to 545,035.50 and 780,185.25

Step by Step Solution

1. Step 1: Write the proportion equation
   545,035.50 : 780,185.25 = 780,185.25 : x
2. Step 2: Convert to fraction form
   545,035.50/780,185.25 = 780,185.25/x
3. Step 3: Cross multiply
   545,035.50x = 780,185.25 × 780,185.25
4. Step 4: Simplify right side
   545,035.50x = 608,689,024,317.56
5. Step 5: Solve for x
   x = 608,689,024,317.56/545,035.50
6. Step 6: Final answer
   x = 1,116,787.85