Finding the Third Proportional to 372,658 and 526,801.50

Step by Step Solution

1. Step 1: Write the proportion equation
   372,658 : 526,801.50 = 526,801.50 : x
2. Step 2: Convert to fraction form
   372,658/526,801.50 = 526,801.50/x
3. Step 3: Cross multiply
   372,658x = 526,801.50 × 526,801.50
4. Step 4: Simplify right side
   372,658x = 277,519,820,402.25
5. Step 5: Solve for x
   x = 277,519,820,402.25/372,658
6. Step 6: Final answer
   x = 744,703.78