Finding the Third Proportional to 493,878 and 747,702.50

Step by Step Solution

1. Step 1: Write the proportion equation
   493,878 : 747,702.50 = 747,702.50 : x
2. Step 2: Convert to fraction form
   493,878/747,702.50 = 747,702.50/x
3. Step 3: Cross multiply
   493,878x = 747,702.50 × 747,702.50
4. Step 4: Simplify right side
   493,878x = 559,059,028,506.25
5. Step 5: Solve for x
   x = 559,059,028,506.25/493,878
6. Step 6: Final answer
   x = 1,131,978.00