Finding the Third Proportional to 478,599 and 740,977.50

Step by Step Solution

1. Step 1: Write the proportion equation
   478,599 : 740,977.50 = 740,977.50 : x
2. Step 2: Convert to fraction form
   478,599/740,977.50 = 740,977.50/x
3. Step 3: Cross multiply
   478,599x = 740,977.50 × 740,977.50
4. Step 4: Simplify right side
   478,599x = 549,047,655,506.25
5. Step 5: Solve for x
   x = 549,047,655,506.25/478,599
6. Step 6: Final answer
   x = 1,147,197.67