Finding the Third Proportional to 372,645 and 526,783.50

Step by Step Solution

1. Step 1: Write the proportion equation
   372,645 : 526,783.50 = 526,783.50 : x
2. Step 2: Convert to fraction form
   372,645/526,783.50 = 526,783.50/x
3. Step 3: Cross multiply
   372,645x = 526,783.50 × 526,783.50
4. Step 4: Simplify right side
   372,645x = 277,500,855,872.25
5. Step 5: Solve for x
   x = 277,500,855,872.25/372,645
6. Step 6: Final answer
   x = 744,678.87