Finding the Third Proportional to 316,075.50 and 698,625

Step by Step Solution

1. Step 1: Write the proportion equation
   316,075.50 : 698,625 = 698,625 : x
2. Step 2: Convert to fraction form
   316,075.50/698,625 = 698,625/x
3. Step 3: Cross multiply
   316,075.50x = 698,625 × 698,625
4. Step 4: Simplify right side
   316,075.50x = 488,076,890,625
5. Step 5: Solve for x
   x = 488,076,890,625/316,075.50
6. Step 6: Final answer
   x = 1,544,178.18