Finding the Third Proportional to 146,607,853.50 and 215,424,090

Step by Step Solution

1. Step 1: Write the proportion equation
   146,607,853.50 : 215,424,090 = 215,424,090 : x
2. Step 2: Convert to fraction form
   146,607,853.50/215,424,090 = 215,424,090/x
3. Step 3: Cross multiply
   146,607,853.50x = 215,424,090 × 215,424,090
4. Step 4: Simplify right side
   146,607,853.50x = 46,407,538,552,328,096
5. Step 5: Solve for x
   x = 46,407,538,552,328,096/146,607,853.50
6. Step 6: Final answer
   x = 316,541,968.55