Finding the Third Proportional to 318,573 and 695,101.50

Step by Step Solution

1. Step 1: Write the proportion equation
   318,573 : 695,101.50 = 695,101.50 : x
2. Step 2: Convert to fraction form
   318,573/695,101.50 = 695,101.50/x
3. Step 3: Cross multiply
   318,573x = 695,101.50 × 695,101.50
4. Step 4: Simplify right side
   318,573x = 483,166,095,302.25
5. Step 5: Solve for x
   x = 483,166,095,302.25/318,573
6. Step 6: Final answer
   x = 1,516,657.39