Finding the Third Proportional to 207,903 and 437,539.50

Step by Step Solution

1. Step 1: Write the proportion equation
   207,903 : 437,539.50 = 437,539.50 : x
2. Step 2: Convert to fraction form
   207,903/437,539.50 = 437,539.50/x
3. Step 3: Cross multiply
   207,903x = 437,539.50 × 437,539.50
4. Step 4: Simplify right side
   207,903x = 191,440,814,060.25
5. Step 5: Solve for x
   x = 191,440,814,060.25/207,903
6. Step 6: Final answer
   x = 920,817.95