Finding the Third Proportional to 490,122 and 749,602.50

Step by Step Solution

1. Step 1: Write the proportion equation
   490,122 : 749,602.50 = 749,602.50 : x
2. Step 2: Convert to fraction form
   490,122/749,602.50 = 749,602.50/x
3. Step 3: Cross multiply
   490,122x = 749,602.50 × 749,602.50
4. Step 4: Simplify right side
   490,122x = 561,903,908,006.25
5. Step 5: Solve for x
   x = 561,903,908,006.25/490,122
6. Step 6: Final answer
   x = 1,146,457.22