Finding the Third Proportional to 489,516,213 and 759,089,662.50

Step by Step Solution

1. Step 1: Write the proportion equation
   489,516,213 : 759,089,662.50 = 759,089,662.50 : x
2. Step 2: Convert to fraction form
   489,516,213/759,089,662.50 = 759,089,662.50/x
3. Step 3: Cross multiply
   489,516,213x = 759,089,662.50 × 759,089,662.50
4. Step 4: Simplify right side
   489,516,213x = 576,217,115,714,363,904
5. Step 5: Solve for x
   x = 576,217,115,714,363,904/489,516,213
6. Step 6: Final answer
   x = 1,177,115,487.52